diff --git a/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/definition/BpmBoundaryEventTypeEnum.java b/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/definition/BpmBoundaryEventTypeEnum.java
index a63804de32..69c5512599 100644
--- a/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/definition/BpmBoundaryEventTypeEnum.java
+++ b/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/definition/BpmBoundaryEventTypeEnum.java
@@ -14,7 +14,8 @@ import lombok.Getter;
 public enum BpmBoundaryEventTypeEnum {
 
     USER_TASK_TIMEOUT(1, "用户任务超时"),
-    DELAY_TIMER_TIMEOUT(2, "延迟器超时");
+    DELAY_TIMER_TIMEOUT(2, "延迟器超时"),
+    CHILD_PROCESS_TIMEOUT(3, "子流程超时");
 
     private final Integer type;
     private final String name;
diff --git a/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/definition/BpmSimpleModelNodeTypeEnum.java b/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/definition/BpmSimpleModelNodeTypeEnum.java
index b21bc65313..e5ffa12025 100644
--- a/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/definition/BpmSimpleModelNodeTypeEnum.java
+++ b/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/definition/BpmSimpleModelNodeTypeEnum.java
@@ -30,8 +30,7 @@ public enum BpmSimpleModelNodeTypeEnum implements ArrayValuable<Integer> {
     DELAY_TIMER_NODE(14, "延迟器", "receiveTask"),
     TRIGGER_NODE(15, "触发器", "serviceTask"),
 
-    CHILD_PROCESS(20, "子流程", "callActivity"), // TODO @lesan：CHILD_PROCESS、ASYNC_CHILD_PROCESS 可以合并为一个么？
-    ASYNC_CHILD_PROCESS(21, "异步子流程", "callActivity"),
+    CHILD_PROCESS(20, "子流程", "callActivity"),
 
     // 50 ~ 条件分支
     CONDITION_NODE(50, "条件", "sequenceFlow"), // 用于构建流转条件的表达式
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/vo/model/simple/BpmSimpleModelNodeVO.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/vo/model/simple/BpmSimpleModelNodeVO.java
index b5e978f2b6..76a44fe3e1 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/vo/model/simple/BpmSimpleModelNodeVO.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/vo/model/simple/BpmSimpleModelNodeVO.java
@@ -423,35 +423,35 @@ public class BpmSimpleModelNodeVO {
     @Valid
     public static class ChildProcessSetting {
 
-        // TODO @lesan：calledElement => calledProcessDefinitionKey ? 这样更容易理解？不过如果一个流程多次发起，key 变了，好像会有问题？
         @Schema(description = "被调用流程", requiredMode = Schema.RequiredMode.REQUIRED, example = "xxx")
         @NotEmpty(message = "被调用流程不能为空")
-        private String calledElement;
+        private String calledProcessDefinitionKey;
 
         @Schema(description = "被调用流程名称", requiredMode = Schema.RequiredMode.REQUIRED, example = "xxx")
         @NotEmpty(message = "被调用流程名称不能为空")
-        private String calledElementName;
+        private String calledProcessDefinitionName;
 
         @Schema(description = "是否异步", requiredMode = Schema.RequiredMode.REQUIRED, example = "false")
         @NotNull(message = "是否异步不能为空")
         private Boolean async;
 
-        // TODO @lesan：inVariables
-        @Schema(description = "输入参数(主->子)", requiredMode = Schema.RequiredMode.REQUIRED, example = "[]")
-        private List<IOParameter> inVariable;
+        @Schema(description = "输入参数(主->子)", example = "[]")
+        private List<IOParameter> inVariables;
 
-        // TODO @lesan：outVariables
         @Schema(description = "输出参数(子->主)", example = "[]")
-        private List<IOParameter> outVariable;
+        private List<IOParameter> outVariables;
 
-        @Schema(description = "是否自动跳过子流程发起节点", example = "false")
+        @Schema(description = "是否自动跳过子流程发起节点", requiredMode = Schema.RequiredMode.REQUIRED, example = "false")
         @NotNull(message = "是否自动跳过子流程发起节点不能为空")
         private Boolean skipStartUserNode;
 
         @Schema(description = "子流程发起人配置", requiredMode = Schema.RequiredMode.REQUIRED, example = "{}")
-        // TODO @lesan：这个应该也必须填写？
+        @NotNull(message = "子流程发起人配置不能为空")
         private StartUserSetting startUserSetting;
 
+        @Schema(description = "超时设置", requiredMode = Schema.RequiredMode.REQUIRED, example = "{}")
+        private TimeoutSetting timeoutSetting;
+
         @Schema(description = "子流程发起人配置")
         @Data
         @Valid
@@ -465,11 +465,28 @@ public class BpmSimpleModelNodeVO {
             @Schema(description = "表单", example = "xxx")
             private String formField;
 
-            // TODO @lesan：emptyHandleType => emptyType，和 type 对上？
             @Schema(description = "当子流程发起人为空时类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
             @NotNull(message = "当子流程发起人为空时类型不能为空")
             @InEnum(BpmChildProcessStartUserEmptyTypeEnum.class)
-            private Integer emptyHandleType;
+            private Integer emptyType;
+
+        }
+
+        @Schema(description = "超时设置")
+        @Data
+        @Valid
+        public static class TimeoutSetting {
+
+            @Schema(description = "是否开启超时设置", requiredMode = Schema.RequiredMode.REQUIRED, example = "false")
+            @NotNull(message = "是否开启超时设置不能为空")
+            private Boolean enable;
+
+            @Schema(description = "时间类型", example = "1")
+            @InEnum(BpmDelayTimerTypeEnum.class)
+            private Integer type;
+
+            @Schema(description = "时间表达式", example = "PT1H,2025-01-01T00:00:00")
+            private String timeExpression;
 
         }
 
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/listener/BpmTaskEventListener.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/listener/BpmTaskEventListener.java
index 8cddaf262a..329241f799 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/listener/BpmTaskEventListener.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/listener/BpmTaskEventListener.java
@@ -110,6 +110,10 @@ public class BpmTaskEventListener extends AbstractFlowableEngineEventListener {
         } else if (ObjectUtil.equal(bpmTimerBoundaryEventType, BpmBoundaryEventTypeEnum.DELAY_TIMER_TIMEOUT)) {
             String taskKey = boundaryEvent.getAttachedToRefId();
             taskService.triggerTask(event.getProcessInstanceId(), taskKey);
+            // 2.3 子流程超时处理
+        } else if (ObjectUtil.equal(bpmTimerBoundaryEventType, BpmBoundaryEventTypeEnum.CHILD_PROCESS_TIMEOUT)) {
+            String taskKey = boundaryEvent.getAttachedToRefId();
+            taskService.processChildProcessTimeout(event.getProcessInstanceId(), taskKey);
         }
     }
 
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/FlowableUtils.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/FlowableUtils.java
index 7ab71a0470..6022b8fe93 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/FlowableUtils.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/FlowableUtils.java
@@ -1,7 +1,7 @@
 package cn.iocoder.yudao.module.bpm.framework.flowable.core.util;
 
+import cn.hutool.core.map.MapUtil;
 import cn.hutool.core.util.ObjectUtil;
-import cn.hutool.core.util.StrUtil;
 import cn.hutool.extra.spring.SpringUtil;
 import cn.iocoder.yudao.framework.common.core.KeyValue;
 import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
@@ -244,8 +244,7 @@ public class FlowableUtils {
         return formFieldsMap.entrySet().stream()
                 .limit(3)
                 .map(entry -> new KeyValue<>(entry.getValue().getTitle(),
-                        // TODO @lesan： MapUtil.getStr 可以更简单？
-                        StrUtil.toStringOrEmpty(processVariables.getOrDefault(entry.getValue().getField(), ""))))
+                        MapUtil.getStr(processVariables, entry.getValue().getField(), "")))
                 .collect(Collectors.toList());
     }
 
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/SimpleModelUtils.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/SimpleModelUtils.java
index 0194bea678..def9e8aac5 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/SimpleModelUtils.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/SimpleModelUtils.java
@@ -48,7 +48,7 @@ public class SimpleModelUtils {
                 new StartUserNodeConvert(), new ApproveNodeConvert(), new CopyNodeConvert(), new TransactorNodeConvert(),
                 new DelayTimerNodeConvert(), new TriggerNodeConvert(),
                 new ConditionBranchNodeConvert(), new ParallelBranchNodeConvert(), new InclusiveBranchNodeConvert(), new RouteBranchNodeConvert(),
-                new ChildProcessConvert(), new AsyncChildProcessConvert());
+                new ChildProcessConvert());
         converts.forEach(convert -> NODE_CONVERTS.put(convert.getType(), convert));
     }
 
@@ -416,6 +416,7 @@ public class SimpleModelUtils {
         private BoundaryEvent buildUserTaskTimeoutBoundaryEvent(UserTask userTask,
                                                                 BpmSimpleModelNodeVO.TimeoutHandler timeoutHandler) {
             // 1.1 定时器边界事件
+            // TODO @lesan：一些 BoundaryEvent timeout 的，可以做一些基础的设置么？
             BoundaryEvent boundaryEvent = new BoundaryEvent();
             boundaryEvent.setId("Event-" + IdUtil.fastUUID());
             boundaryEvent.setCancelActivity(false); // 设置关联的任务为不会被中断
@@ -723,6 +724,7 @@ public class SimpleModelUtils {
             // 2. 添加接收任务的 Timer Boundary Event
             if (node.getDelaySetting() != null) {
                 // 2.1 定时器边界事件
+                // TODO @lesan：一些 BoundaryEvent timeout 的，可以做一些基础的设置么？
                 BoundaryEvent boundaryEvent = new BoundaryEvent();
                 boundaryEvent.setId("Event-" + IdUtil.fastUUID());
                 boundaryEvent.setCancelActivity(false);
@@ -816,48 +818,41 @@ public class SimpleModelUtils {
     private static class ChildProcessConvert implements NodeConvert {
 
         @Override
-        public CallActivity convert(BpmSimpleModelNodeVO node) {
+        public List<FlowElement> convertList(BpmSimpleModelNodeVO node) {
+            List<FlowElement> flowElements = new ArrayList<>(2);
             BpmSimpleModelNodeVO.ChildProcessSetting childProcessSetting = node.getChildProcessSetting();
-            List<IOParameter> inVariable = childProcessSetting.getInVariable() == null ?
-                    new ArrayList<>() : new ArrayList<>(childProcessSetting.getInVariable());
+            List<IOParameter> inVariables = childProcessSetting.getInVariables() == null ?
+                    new ArrayList<>() : new ArrayList<>(childProcessSetting.getInVariables());
             CallActivity callActivity = new CallActivity();
             callActivity.setId(node.getId());
             callActivity.setName(node.getName());
-            callActivity.setCalledElementType("key"); // TODO @lesan：这里为啥是 key 哈？
+            callActivity.setCalledElementType("key");
             // 1. 是否异步
-            callActivity.setAsynchronous(node.getChildProcessSetting().getAsync());
-
-            // 2. 调用的子流程
-            callActivity.setCalledElement(childProcessSetting.getCalledElement());
-            callActivity.setProcessInstanceName(childProcessSetting.getCalledElementName());
-
-            // 3. 是否自动跳过子流程发起节点
-            // TODO @lesan：貌似只有 SourceExpression 的区别，直接通过 valueOf childProcessSetting.getSkipStartUserNode()？？？
-            if (Boolean.TRUE.equals(childProcessSetting.getSkipStartUserNode())) {
-                IOParameter ioParameter = new IOParameter();
-                ioParameter.setSourceExpression("true");
-                ioParameter.setTarget(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_SKIP_START_USER_NODE);
-                inVariable.add(ioParameter);
-            } else {
-                IOParameter ioParameter = new IOParameter();
-                ioParameter.setSourceExpression("false");
-                ioParameter.setTarget(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_SKIP_START_USER_NODE);
-                inVariable.add(ioParameter);
+            if (node.getChildProcessSetting().getAsync()) {
+                // TODO @lesan: 这里目前测试没有跳过执行call activity 后面的节点
+                callActivity.setAsynchronous(true);
             }
 
-            // 4. 主→子变量传递
-            // 4.1 【默认需要传递的一些变量】流程状态
-            // TODO @lesan：4.1 这个要不，单独一个序号，类似 3. 这个。然后下面，就是把 主→子变量传递、子→主变量传递；这样逻辑连贯点哈
+            // 2. 调用的子流程
+            callActivity.setCalledElement(childProcessSetting.getCalledProcessDefinitionKey());
+            callActivity.setProcessInstanceName(childProcessSetting.getCalledProcessDefinitionName());
+
+            // 3. 是否自动跳过子流程发起节点
             IOParameter ioParameter = new IOParameter();
+            ioParameter.setSourceExpression(childProcessSetting.getSkipStartUserNode().toString());
+            ioParameter.setTarget(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_SKIP_START_USER_NODE);
+            inVariables.add(ioParameter);
+
+            // 4. 【默认需要传递的一些变量】流程状态
+            ioParameter = new IOParameter();
             ioParameter.setSource(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS);
             ioParameter.setTarget(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS);
-            inVariable.add(ioParameter);
-            callActivity.setInParameters(inVariable);
+            inVariables.add(ioParameter);
 
-            // 5. 子→主变量传递
-            // TODO @lesan：通过 isNotEmpty 这种哈
-            if (childProcessSetting.getOutVariable() != null && !childProcessSetting.getOutVariable().isEmpty()) {
-                callActivity.setOutParameters(childProcessSetting.getOutVariable());
+            // 5. 主→子变量传递、子->主变量传递
+            callActivity.setInParameters(inVariables);
+            if (ArrayUtil.isNotEmpty(childProcessSetting.getOutVariables()) && ObjUtil.notEqual(childProcessSetting.getAsync(), Boolean.TRUE)) {
+                callActivity.setOutParameters(childProcessSetting.getOutVariables());
             }
 
             // 6. 子流程发起人配置
@@ -873,9 +868,28 @@ public class SimpleModelUtils {
             executionListeners.add(flowableListener);
             callActivity.setExecutionListeners(executionListeners);
 
+            // 7. 超时设置
+            if (childProcessSetting.getTimeoutSetting() != null) {
+                // TODO @lesan：一些 BoundaryEvent timeout 的，可以做一些基础的设置么？
+                BoundaryEvent boundaryEvent = new BoundaryEvent();
+                boundaryEvent.setId("Event-" + IdUtil.fastUUID());
+                boundaryEvent.setCancelActivity(false);
+                boundaryEvent.setAttachedToRef(callActivity);
+                TimerEventDefinition eventDefinition = new TimerEventDefinition();
+                if (childProcessSetting.getTimeoutSetting().getType().equals(BpmDelayTimerTypeEnum.FIXED_DATE_TIME.getType())) {
+                    eventDefinition.setTimeDuration(childProcessSetting.getTimeoutSetting().getTimeExpression());
+                } else if (childProcessSetting.getTimeoutSetting().getType().equals(BpmDelayTimerTypeEnum.FIXED_TIME_DURATION.getType())) {
+                    eventDefinition.setTimeDate(childProcessSetting.getTimeoutSetting().getTimeExpression());
+                }
+                boundaryEvent.addEventDefinition(eventDefinition);
+                addExtensionElement(boundaryEvent, BOUNDARY_EVENT_TYPE, BpmBoundaryEventTypeEnum.CHILD_PROCESS_TIMEOUT.getType());
+                flowElements.add(boundaryEvent);
+            }
+
             // 添加节点类型
             addNodeType(node.getType(), callActivity);
-            return callActivity;
+            flowElements.add(callActivity);
+            return flowElements;
         }
 
         @Override
@@ -885,16 +899,6 @@ public class SimpleModelUtils {
 
     }
 
-    private static class AsyncChildProcessConvert extends ChildProcessConvert {
-
-        @Override
-        public BpmSimpleModelNodeTypeEnum getType() {
-            return BpmSimpleModelNodeTypeEnum.ASYNC_CHILD_PROCESS;
-        }
-
-    }
-
-
     private static String buildGatewayJoinId(String id) {
         return id + "_join";
     }
@@ -925,7 +929,6 @@ public class SimpleModelUtils {
                 || nodeType == BpmSimpleModelNodeTypeEnum.TRANSACTOR_NODE
                 || nodeType == BpmSimpleModelNodeTypeEnum.COPY_NODE
                 || nodeType == BpmSimpleModelNodeTypeEnum.CHILD_PROCESS
-                || nodeType == BpmSimpleModelNodeTypeEnum.ASYNC_CHILD_PROCESS
                 || nodeType == BpmSimpleModelNodeTypeEnum.END_NODE) {
             // 添加元素
             resultNodes.add(currentNode);
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmProcessInstanceServiceImpl.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmProcessInstanceServiceImpl.java
index 558180dd3f..ed128f186e 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmProcessInstanceServiceImpl.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmProcessInstanceServiceImpl.java
@@ -320,7 +320,7 @@ public class BpmProcessInstanceServiceImpl implements BpmProcessInstanceService
         // 遍历 tasks 列表，只处理已结束的 UserTask
         // 为什么不通过 activities 呢？因为，加签场景下，它只存在于 tasks，没有 activities，导致如果遍历 activities
         // 的话，它无法成为一个节点
-        // TODO @芋艿：子流程只有activity，这里获取不到已结束的子流程；TODO @lesan：这个会有啥影响？微信聊？
+        // TODO @芋艿：子流程只有activity，这里获取不到已结束的子流程；TODO @lesan：这个会导致timeline不会展示已结束的子流程
         List<HistoricTaskInstance> endTasks = filterList(tasks, task -> task.getEndTime() != null);
         List<ActivityNode> approvalNodes = convertList(endTasks, task -> {
             FlowElement flowNode = BpmnModelUtils.getFlowElementById(bpmnModel, task.getTaskDefinitionKey());
@@ -414,7 +414,7 @@ public class BpmProcessInstanceServiceImpl implements BpmProcessInstanceService
             // 处理每个任务的 tasks 属性
             for (HistoricActivityInstance activity : taskActivities) {
                 HistoricTaskInstance task = taskMap.get(activity.getTaskId());
-                // TODO @lesan：这里为啥 continue 哈？
+                // TODO @lesan：这里为啥 continue 哈？ @芋艿：子流程的 activity 中 task 是null 下面的方法会报错；TODO @lesan：写个注释？？？
                 if (task == null) {
                     continue;
                 }
@@ -510,8 +510,7 @@ public class BpmProcessInstanceServiceImpl implements BpmProcessInstanceService
         }
 
         // 4. 子流程节点
-        if (BpmSimpleModelNodeTypeEnum.CHILD_PROCESS.getType().equals(node.getType()) ||
-                BpmSimpleModelNodeTypeEnum.ASYNC_CHILD_PROCESS.getType().equals(node.getType())) {
+        if (BpmSimpleModelNodeTypeEnum.CHILD_PROCESS.getType().equals(node.getType())) {
             return activityNode;
         }
         return null;
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmTaskService.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmTaskService.java
index 69e95fddd2..c38771df43 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmTaskService.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmTaskService.java
@@ -276,6 +276,13 @@ public interface BpmTaskService {
      */
     void processTaskTimeout(String processInstanceId, String taskDefineKey, Integer handlerType);
 
+    /**
+     * 处理 ChildProcess 子流程的审批超时事件
+     *
+     * @param processInstanceId 流程示例编号
+     * @param taskDefineKey     任务 Key
+     */
+    void processChildProcessTimeout(String processInstanceId, String taskDefineKey);
 
     /**
      * 触发流程任务 (ReceiveTask) 的执行
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmTaskServiceImpl.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmTaskServiceImpl.java
index db739987b8..8352ae226c 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmTaskServiceImpl.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmTaskServiceImpl.java
@@ -41,6 +41,7 @@ import org.flowable.engine.ManagementService;
 import org.flowable.engine.RuntimeService;
 import org.flowable.engine.TaskService;
 import org.flowable.engine.history.HistoricActivityInstance;
+import org.flowable.engine.runtime.ActivityInstance;
 import org.flowable.engine.runtime.Execution;
 import org.flowable.engine.runtime.ProcessInstance;
 import org.flowable.task.api.DelegationState;
@@ -1230,7 +1231,7 @@ public class BpmTaskServiceImpl implements BpmTaskService {
                 if (userTaskElement.getId().equals(START_USER_NODE_ID)
                         && (skipStartUserNodeFlag == null // 目的：一般是“主流程”，发起人节点，自动通过审核
                             || Boolean.TRUE.equals(skipStartUserNodeFlag)) // 目的：一般是“子流程”，发起人节点，按配置自动通过审核
-                        && !Boolean.TRUE.equals(returnTaskFlag)) { // TODO @lesan：ObjUtil.notEqual(returnTaskFlag, Boolean.TRUE) 改成这个有问题么？尽量不用 ! 取反
+                        && ObjUtil.notEqual(returnTaskFlag, Boolean.TRUE)) {
                     getSelf().approveTask(Long.valueOf(task.getAssignee()), new BpmTaskApproveReqVO().setId(task.getId())
                             .setReason(BpmReasonEnum.ASSIGN_START_USER_APPROVE_WHEN_SKIP_START_USER_NODE.getReason()));
                     return;
@@ -1322,6 +1323,16 @@ public class BpmTaskServiceImpl implements BpmTaskService {
         }));
     }
 
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void processChildProcessTimeout(String processInstanceId, String taskDefineKey) {
+        List<ActivityInstance> activityInstances = runtimeService.createActivityInstanceQuery()
+                .processInstanceId(processInstanceId)
+                .activityId(taskDefineKey).list();
+        activityInstances.forEach(activityInstance -> FlowableUtils.execute(activityInstance.getTenantId(),
+                () -> moveTaskToEnd(activityInstance.getCalledProcessInstanceId(), BpmReasonEnum.TIMEOUT_APPROVE.getReason())));
+    }
+
     @Override
     public void triggerTask(String processInstanceId, String taskDefineKey) {
         Execution execution = runtimeService.createExecutionQuery()
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/listener/BpmCallActivityListener.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/listener/BpmCallActivityListener.java
index 2be4fcc8de..b454d33335 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/listener/BpmCallActivityListener.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/listener/BpmCallActivityListener.java
@@ -59,19 +59,19 @@ public class BpmCallActivityListener implements ExecutionListener {
             // 2.1 当表单值为空时
             if (StrUtil.isEmpty(formFieldValue)) {
                 // 2.1.1 来自主流程发起人
-                if (startUserSetting.getEmptyHandleType().equals(BpmChildProcessStartUserEmptyTypeEnum.MAIN_PROCESS_START_USER.getType())) {
+                if (startUserSetting.getEmptyType().equals(BpmChildProcessStartUserEmptyTypeEnum.MAIN_PROCESS_START_USER.getType())) {
                     FlowableUtils.setAuthenticatedUserId(Long.parseLong(parent.getStartUserId()));
                     return;
                 }
                 // 2.1.2 来自子流程管理员
-                if (startUserSetting.getEmptyHandleType().equals(BpmChildProcessStartUserEmptyTypeEnum.CHILD_PROCESS_ADMIN.getType())) {
+                if (startUserSetting.getEmptyType().equals(BpmChildProcessStartUserEmptyTypeEnum.CHILD_PROCESS_ADMIN.getType())) {
                     BpmProcessDefinitionInfoDO processDefinition = processDefinitionService.getProcessDefinitionInfo(execution.getProcessDefinitionId());
                     List<Long> managerUserIds = processDefinition.getManagerUserIds();
                     FlowableUtils.setAuthenticatedUserId(managerUserIds.get(0));
                     return;
                 }
                 // 2.1.3 来自主流程管理员
-                if (startUserSetting.getEmptyHandleType().equals(BpmChildProcessStartUserEmptyTypeEnum.MAIN_PROCESS_ADMIN.getType())) {
+                if (startUserSetting.getEmptyType().equals(BpmChildProcessStartUserEmptyTypeEnum.MAIN_PROCESS_ADMIN.getType())) {
                     BpmProcessDefinitionInfoDO processDefinition = processDefinitionService.getProcessDefinitionInfo(parent.getProcessDefinitionId());
                     List<Long> managerUserIds = processDefinition.getManagerUserIds();
                     FlowableUtils.setAuthenticatedUserId(managerUserIds.get(0));
@@ -82,7 +82,8 @@ public class BpmCallActivityListener implements ExecutionListener {
             try {
                 FlowableUtils.setAuthenticatedUserId(Long.parseLong(formFieldValue));
             } catch (Exception e) {
-                // todo @lesan：打个日志，方便排查
+                log.error("[notify][监听器：{}，子流程监听器设置流程的发起人字符串转 Long 失败，字符串：{}]",
+                        DELEGATE_EXPRESSION, formFieldValue);
                 FlowableUtils.setAuthenticatedUserId(Long.parseLong(parent.getStartUserId()));
             }
         }
diff --git a/yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/logger/ApiAccessLogServiceImpl.java b/yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/logger/ApiAccessLogServiceImpl.java
index 9483e8f738..4433fc2a75 100644
--- a/yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/logger/ApiAccessLogServiceImpl.java
+++ b/yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/logger/ApiAccessLogServiceImpl.java
@@ -1,8 +1,8 @@
 package cn.iocoder.yudao.module.infra.service.logger;
 
-import cn.hutool.core.util.StrUtil;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
+import cn.iocoder.yudao.framework.common.util.string.StrUtils;
 import cn.iocoder.yudao.framework.tenant.core.context.TenantContextHolder;
 import cn.iocoder.yudao.framework.tenant.core.util.TenantUtils;
 import cn.iocoder.yudao.module.infra.api.logger.dto.ApiAccessLogCreateReqDTO;
@@ -35,8 +35,8 @@ public class ApiAccessLogServiceImpl implements ApiAccessLogService {
     @Override
     public void createApiAccessLog(ApiAccessLogCreateReqDTO createDTO) {
         ApiAccessLogDO apiAccessLog = BeanUtils.toBean(createDTO, ApiAccessLogDO.class);
-        apiAccessLog.setRequestParams(StrUtil.maxLength(apiAccessLog.getRequestParams(), REQUEST_PARAMS_MAX_LENGTH));
-        apiAccessLog.setResultMsg(StrUtil.maxLength(apiAccessLog.getResultMsg(), RESULT_MSG_MAX_LENGTH));
+        apiAccessLog.setRequestParams(StrUtils.maxLength(apiAccessLog.getRequestParams(), REQUEST_PARAMS_MAX_LENGTH));
+        apiAccessLog.setResultMsg(StrUtils.maxLength(apiAccessLog.getResultMsg(), RESULT_MSG_MAX_LENGTH));
         if (TenantContextHolder.getTenantId() != null) {
             apiAccessLogMapper.insert(apiAccessLog);
         } else {
diff --git a/yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/logger/ApiErrorLogServiceImpl.java b/yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/logger/ApiErrorLogServiceImpl.java
index 747b220b5c..1fcbc8dd78 100644
--- a/yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/logger/ApiErrorLogServiceImpl.java
+++ b/yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/logger/ApiErrorLogServiceImpl.java
@@ -1,8 +1,8 @@
 package cn.iocoder.yudao.module.infra.service.logger;
 
-import cn.hutool.core.util.StrUtil;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
+import cn.iocoder.yudao.framework.common.util.string.StrUtils;
 import cn.iocoder.yudao.framework.tenant.core.context.TenantContextHolder;
 import cn.iocoder.yudao.framework.tenant.core.util.TenantUtils;
 import cn.iocoder.yudao.module.infra.api.logger.dto.ApiErrorLogCreateReqDTO;
@@ -39,7 +39,7 @@ public class ApiErrorLogServiceImpl implements ApiErrorLogService {
     public void createApiErrorLog(ApiErrorLogCreateReqDTO createDTO) {
         ApiErrorLogDO apiErrorLog = BeanUtils.toBean(createDTO, ApiErrorLogDO.class)
                 .setProcessStatus(ApiErrorLogProcessStatusEnum.INIT.getStatus());
-        apiErrorLog.setRequestParams(StrUtil.maxLength(apiErrorLog.getRequestParams(), REQUEST_PARAMS_MAX_LENGTH));
+        apiErrorLog.setRequestParams(StrUtils.maxLength(apiErrorLog.getRequestParams(), REQUEST_PARAMS_MAX_LENGTH));
         if (TenantContextHolder.getTenantId() != null) {
             apiErrorLogMapper.insert(apiErrorLog);
         } else {