diff --git a/src/main/java/com/xdap/self_development/service/impl/ActivitiProcessServiceImpl.java b/src/main/java/com/xdap/self_development/service/impl/ActivitiProcessServiceImpl.java
index aa64d36..0204e88 100644
--- a/src/main/java/com/xdap/self_development/service/impl/ActivitiProcessServiceImpl.java
+++ b/src/main/java/com/xdap/self_development/service/impl/ActivitiProcessServiceImpl.java
@@ -509,6 +509,9 @@ public class ActivitiProcessServiceImpl implements ActivitiProcessService {
                 .eq("approval_id", approvalId)
                 .doQuery(EngineParamDetailPojo.class);
         List<String> ids = detailPojos.stream().map(x -> x.getId()).collect(Collectors.toList());
+        if (ObjectUtils.isEmpty(ids)) {
+            return null;
+        }
         List<DataChangeCommentPojo> dataChangeCommentPojos = sw.buildFromDatasource("xdap_app_223770822127386625")
                 .in("param_detail_id", ids)
                 .doQuery(DataChangeCommentPojo.class);