diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/vo/instance/BpmApprovalDetailRespVO.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/vo/instance/BpmApprovalDetailRespVO.java
index 16a6c0e9e4..888f59ada2 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/vo/instance/BpmApprovalDetailRespVO.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/vo/instance/BpmApprovalDetailRespVO.java
@@ -101,9 +101,8 @@ public class BpmApprovalDetailRespVO {
         @Schema(description = "审批意见", example = "同意")
         private String reason;
 
-        // TODO @lesan：改成 signPicUrl 会好点
         @Schema(description = "签名", example = "https://www.iocoder.cn/sign.png")
-        private String sign;
+        private String signPicUrl;
 
     }
 
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/vo/task/BpmTaskApproveReqVO.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/vo/task/BpmTaskApproveReqVO.java
index 3988754a29..12449736ce 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/vo/task/BpmTaskApproveReqVO.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/vo/task/BpmTaskApproveReqVO.java
@@ -18,9 +18,8 @@ public class BpmTaskApproveReqVO {
     @NotEmpty(message = "审批意见不能为空")
     private String reason;
 
-    // TODO @lesan：改成 signPicUrl 会好点
     @Schema(description = "签名", example = "https://www.iocoder.cn/sign.png")
-    private String sign;
+    private String signPicUrl;
 
     @Schema(description = "变量实例（动态表单）", requiredMode = Schema.RequiredMode.REQUIRED)
     private Map<String, Object> variables;
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/convert/task/BpmProcessInstanceConvert.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/convert/task/BpmProcessInstanceConvert.java
index b409f0639c..8118bdd0ca 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/convert/task/BpmProcessInstanceConvert.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/convert/task/BpmProcessInstanceConvert.java
@@ -187,7 +187,7 @@ public interface BpmProcessInstanceConvert {
         }
         return BeanUtils.toBean(task, BpmApprovalDetailRespVO.ActivityNodeTask.class)
                 .setStatus(FlowableUtils.getTaskStatus(task)).setReason(FlowableUtils.getTaskReason(task))
-                .setSign(FlowableUtils.getTaskSign(task));
+                .setSignPicUrl(FlowableUtils.getTaskSignPicUrl(task));
     }
 
     default Set<Long> parseUserIds(HistoricProcessInstance processInstance,
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/enums/BpmnVariableConstants.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/enums/BpmnVariableConstants.java
index a108789db5..12d975cd73 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/enums/BpmnVariableConstants.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/enums/BpmnVariableConstants.java
@@ -59,7 +59,6 @@ public class BpmnVariableConstants {
      */
     public static final String TASK_VARIABLE_REASON = "TASK_REASON";
 
-    // TODO @lesan：TASK_SIGN_PIC_URL 。。。虽然长一点，嘿嘿
-    public static final String TASK_VARIABLE_SIGN = "TASK_SIGN";
+    public static final String TASK_SIGN_PIC_URL = "TASK_SIGN_PIC_URL";
 
 }
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 fde29a122f..deaa15869d 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
@@ -213,9 +213,8 @@ public class FlowableUtils {
         return (String) task.getTaskLocalVariables().get(BpmnVariableConstants.TASK_VARIABLE_REASON);
     }
 
-    // TODO @lesan：这个方法名，也改咧
-    public static String getTaskSign(TaskInfo task) {
-        return (String) task.getTaskLocalVariables().get(BpmnVariableConstants.TASK_VARIABLE_SIGN);
+    public static String getTaskSignPicUrl(TaskInfo task) {
+        return (String) task.getTaskLocalVariables().get(BpmnVariableConstants.TASK_SIGN_PIC_URL);
     }
 
     /**
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 4e2185a7c3..f8fba212f3 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
@@ -485,7 +485,7 @@ public class BpmTaskServiceImpl implements BpmTaskService {
         // 1.3 校验签名
         BpmnModel bpmnModel = modelService.getBpmnModelByDefinitionId(task.getProcessDefinitionId());
         Boolean signEnable = parseSignEnable(bpmnModel, task.getTaskDefinitionKey());
-        if (signEnable && StrUtil.isEmpty(reqVO.getSign())) {
+        if (signEnable && StrUtil.isEmpty(reqVO.getSignPicUrl())) {
             throw exception(TASK_SIGNATURE_NOT_EXISTS);
         }
 
@@ -505,7 +505,7 @@ public class BpmTaskServiceImpl implements BpmTaskService {
         // 2.1 更新 task 状态、原因、签字
         updateTaskStatusAndReason(task.getId(), BpmTaskStatusEnum.APPROVE.getStatus(), reqVO.getReason());
         if (signEnable) {
-            taskService.setVariableLocal(task.getId(), BpmnVariableConstants.TASK_VARIABLE_SIGN, reqVO.getSign());
+            taskService.setVariableLocal(task.getId(), BpmnVariableConstants.TASK_SIGN_PIC_URL, reqVO.getSignPicUrl());
         }
         // 2.2 添加评论
         taskService.addComment(task.getId(), task.getProcessInstanceId(), BpmCommentTypeEnum.APPROVE.getType(),