diff --git a/backend/services/dashboard/src/main/java/io/metersphere/dashboard/service/DashboardService.java b/backend/services/dashboard/src/main/java/io/metersphere/dashboard/service/DashboardService.java
index e214f43988..af7361cd17 100644
--- a/backend/services/dashboard/src/main/java/io/metersphere/dashboard/service/DashboardService.java
+++ b/backend/services/dashboard/src/main/java/io/metersphere/dashboard/service/DashboardService.java
@@ -1305,9 +1305,13 @@ public class DashboardService {
         }
         Set<String>handleUsers = new HashSet<>();
         String localHandleUser = hasHandleUser ? userId : null;
-        handleUsers.add(localHandleUser);
+        if (StringUtils.isNotBlank(localHandleUser)) {
+            handleUsers.add(localHandleUser);
+        }
         String handleUser = hasHandleUser ? handleUserId : null;
-        handleUsers.add(handleUser);
+        if (StringUtils.isNotBlank(handleUser)) {
+            handleUsers.add(handleUser);
+        }
         String createUser = hasCreateUser ? userId : null;
         String platformName = projectApplicationService.getPlatformName(projectId);
         Set<String> platforms = getPlatforms(platformName);