diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/candidate/strategy/dept/BpmTaskCandidateStartUserSelectStrategy.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/candidate/strategy/dept/BpmTaskCandidateStartUserSelectStrategy.java
index 9fd14d6de..11cd53017 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/candidate/strategy/dept/BpmTaskCandidateStartUserSelectStrategy.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/candidate/strategy/dept/BpmTaskCandidateStartUserSelectStrategy.java
@@ -51,10 +51,14 @@ public class BpmTaskCandidateStartUserSelectStrategy extends AbstractBpmTaskCand
         ProcessInstance processInstance = processInstanceService.getProcessInstance(execution.getProcessInstanceId());
         Assert.notNull(processInstance, "流程实例({})不能为空", execution.getProcessInstanceId());
         Map<String, List<Long>> startUserSelectAssignees = FlowableUtils.getStartUserSelectAssignees(processInstance);
-        Assert.notNull(startUserSelectAssignees, "流程实例({}) 的发起人自选审批人不能为空",
-                execution.getProcessInstanceId());
+        if (startUserSelectAssignees == null) {
+            return Sets.newLinkedHashSet();
+        }
         // 获得审批人
         List<Long> assignees = startUserSelectAssignees.get(execution.getCurrentActivityId());
+        if (CollUtil.isEmpty(assignees)){
+            return Sets.newLinkedHashSet();
+        }
         return new LinkedHashSet<>(assignees);
     }
 
@@ -70,6 +74,9 @@ public class BpmTaskCandidateStartUserSelectStrategy extends AbstractBpmTaskCand
         }
         // 获得审批人
         List<Long> assignees = startUserSelectAssignees.get(activityId);
+        if (CollUtil.isEmpty(assignees)){
+            return Sets.newLinkedHashSet();
+        }
         return new LinkedHashSet<>(assignees);
     }