diff --git a/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/ErrorCodeConstants.java b/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/ErrorCodeConstants.java
index 65605142c2..23bdba9933 100644
--- a/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/ErrorCodeConstants.java
+++ b/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/ErrorCodeConstants.java
@@ -42,6 +42,7 @@ public interface ErrorCodeConstants {
     ErrorCode PROCESS_INSTANCE_CANCEL_FAIL_NOT_ALLOW = new ErrorCode(1_009_004_005, "流程取消失败，该流程不允许取消");
     ErrorCode PROCESS_INSTANCE_HTTP_TRIGGER_CALL_ERROR = new ErrorCode(1_009_004_006, "流程 Http 触发器请求调用失败");
     ErrorCode PROCESS_INSTANCE_APPROVE_USER_SELECT_ASSIGNEES_NOT_CONFIG = new ErrorCode(1_009_004_007, "下一个任务({})的审批人未配置");
+    ErrorCode CHILD_PROCESS_INSTANCE_CANCEL_FAIL_NOT_ALLOW = new ErrorCode(1_009_004_008, "子流程取消失败，子流程不允许取消");
 
     // ========== 流程任务 1-009-005-000 ==========
     ErrorCode TASK_OPERATE_FAIL_ASSIGN_NOT_SELF = new ErrorCode(1_009_005_001, "操作失败，原因：该任务的审批人不是你");
diff --git a/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/task/BpmReasonEnum.java b/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/task/BpmReasonEnum.java
index b0ade75299..eca18cce6e 100644
--- a/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/task/BpmReasonEnum.java
+++ b/yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/task/BpmReasonEnum.java
@@ -18,6 +18,7 @@ public enum BpmReasonEnum {
     REJECT_TASK("审批不通过任务，原因：{}"), // 场景：用户审批不通过任务。修改文案时，需要注意 isRejectReason 方法
     CANCEL_PROCESS_INSTANCE_BY_START_USER("用户主动取消流程，原因：{}"), // 场景：用户主动取消流程
     CANCEL_PROCESS_INSTANCE_BY_ADMIN("管理员【{}】取消流程，原因：{}"), // 场景：管理员取消流程
+    CANCEL_CHILD_PROCESS_INSTANCE_BY_MAIN_PROCESS("子流程自动取消，原因：子流程已取消"),
 
     // ========== 流程任务的独有原因 ==========
 
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/BpmProcessInstanceController.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/BpmProcessInstanceController.java
index 9316261678..8a3777772e 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/BpmProcessInstanceController.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/BpmProcessInstanceController.java
@@ -148,7 +148,6 @@ public class BpmProcessInstanceController {
                 processDefinition, processDefinitionInfo, startUser, dept));
     }
 
-    // TODO @lesan：【子流程】子流程如果取消，主流程应该是通过、还是不通过哈？还是禁用掉子流程的取消？
     @DeleteMapping("/cancel-by-start-user")
     @Operation(summary = "用户取消流程实例", description = "取消发起的流程")
     @PreAuthorize("@ss.hasPermission('bpm:process-instance:cancel')")
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 3b5bad52c7..ae7e08536d 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
@@ -813,7 +813,6 @@ public class SimpleModelUtils {
             callActivity.setCalledElementType("key");
             // 1. 是否异步
             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);
             }
 
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 aa8f58b45d..efb2cf23b7 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
@@ -823,6 +823,10 @@ public class BpmProcessInstanceServiceImpl implements BpmProcessInstanceService
                 && Boolean.FALSE.equals(processDefinitionInfo.getAllowCancelRunningProcess())) {
             throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_ALLOW);
         }
+        // 1.4 子流程不允许取消
+        if (StrUtil.isNotBlank(instance.getSuperExecutionId())) {
+            throw exception(CHILD_PROCESS_INSTANCE_CANCEL_FAIL_NOT_ALLOW);
+        }
 
         // 2. 取消流程
         updateProcessInstanceCancel(cancelReqVO.getId(),
@@ -851,6 +855,15 @@ public class BpmProcessInstanceServiceImpl implements BpmProcessInstanceService
 
         // 2. 结束流程
         taskService.moveTaskToEnd(id, reason);
+
+        // 3. 取消所有子流程
+        List<ProcessInstance> subProcessInstances = runtimeService.createProcessInstanceQuery()
+                .superProcessInstanceId(id)
+                .list();
+        subProcessInstances.forEach(processInstance -> {
+            updateProcessInstanceCancel(processInstance.getProcessInstanceId(),
+                    BpmReasonEnum.CANCEL_CHILD_PROCESS_INSTANCE_BY_MAIN_PROCESS.getReason());
+        });
     }
 
     @Override