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 a46bf2ab..884171ea 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
@@ -98,9 +98,9 @@ public interface BpmProcessInstanceConvert {
     default BpmProcessInstanceRespVO convert2(HistoricProcessInstance processInstance, BpmProcessInstanceExtDO processInstanceExt,
                                               ProcessDefinition processDefinition, BpmProcessDefinitionExtDO processDefinitionExt,
                                               String bpmnXml, AdminUserRespDTO startUser, DeptRespDTO dept) {
-        BpmProcessInstanceRespVO respVO = new BpmProcessInstanceRespVO() ;
+        BpmProcessInstanceRespVO respVO = convert2(processInstance);
         copyTo(processInstanceExt, respVO);
-        respVO = convert2(processInstance);
+        respVO.setBusinessKey(processInstance.getBusinessKey()) ;
         // definition
         respVO.setProcessDefinition(convert2(processDefinition));
         copyTo(processDefinitionExt, respVO.getProcessDefinition());