diff --git a/linkis-public-enhancements/linkis-jobhistory/src/main/java/org/apache/linkis/jobhistory/restful/api/QueryRestfulApi.java b/linkis-public-enhancements/linkis-jobhistory/src/main/java/org/apache/linkis/jobhistory/restful/api/QueryRestfulApi.java
index 5814cf869a..7ef294f998 100644
--- a/linkis-public-enhancements/linkis-jobhistory/src/main/java/org/apache/linkis/jobhistory/restful/api/QueryRestfulApi.java
+++ b/linkis-public-enhancements/linkis-jobhistory/src/main/java/org/apache/linkis/jobhistory/restful/api/QueryRestfulApi.java
@@ -685,14 +685,18 @@ public Message getUserKeyValue(
     parms.put("nonce", SHAUtils.DOCTOR_NONCE);
     // doctor提供的token
     String token = SHAUtils.DOCTOR_TOKEN.getValue();
-    String signature =
-        SHAUtils.Encrypt(
-            SHAUtils.Encrypt(
-                    parms.get("app_id") + SHAUtils.DOCTOR_NONCE + System.currentTimeMillis(), null)
-                + token,
-            null);
-    parms.put("signature", signature);
-    return Message.ok().data("doctor", parms);
+    if (StringUtils.isNotBlank(token)){
+      String signature =
+              SHAUtils.Encrypt(
+                      SHAUtils.Encrypt(
+                              parms.get("app_id") + SHAUtils.DOCTOR_NONCE + System.currentTimeMillis(), null)
+                              + token,
+                      null);
+      parms.put("signature", signature);
+      return Message.ok().data("doctor", parms);
+    } else {
+      return Message.error("Doctor token cannot be empty");
+    }
   }
 
   @ApiOperation(