diff --git a/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java b/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java
index 3c843f5..8a10b35 100644
--- a/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java
+++ b/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java
@@ -105,7 +105,12 @@ public class FlowTaskServiceImpl extends FlowServiceFactory implements IFlowTask
         if (Objects.isNull(task)) {
             return AjaxResult.error("任务不存在");
         }
-        runtimeService.updateBusinessStatus(taskVo.getInstanceId(), FlowStatus.APPROVING.getValue());
+        ProcessInstance processInstance = runtimeService.createProcessInstanceQuery().processInstanceId(task.getProcessInstanceId()).singleResult();
+        String businessStatus = processInstance.getBusinessStatus();
+//        排除驳回状态
+        if (ObjectUtil.notEqual(businessStatus,FlowStatus.REJECT.getValue() )) {
+            runtimeService.updateBusinessStatus(taskVo.getInstanceId(), FlowStatus.APPROVING.getValue());
+        }
         if (DelegationState.PENDING.equals(task.getDelegationState())) {
             taskService.addComment(taskVo.getTaskId(), taskVo.getInstanceId(), FlowComment.DELEGATE.getType(), taskVo.getComment());
             taskService.resolveTask(taskVo.getTaskId(), taskVo.getVars());
@@ -115,6 +120,10 @@ public class FlowTaskServiceImpl extends FlowServiceFactory implements IFlowTask
             taskService.setAssignee(taskVo.getTaskId(), userId.toString());
             taskService.complete(taskVo.getTaskId(), taskVo.getVars());
         }
+//        兼容驳回状态，提交报错；The process instance id is mandatory, but '' has been provided.
+        if (ObjectUtil.equals(businessStatus,FlowStatus.REJECT.getValue() )) {
+            runtimeService.updateBusinessStatus(taskVo.getInstanceId(), FlowStatus.APPROVING.getValue());
+        }
 
         return AjaxResult.success();
     }