diff --git a/designer_base/src/com/fr/design/extra/ucenter/Client.java b/designer_base/src/com/fr/design/extra/ucenter/Client.java
index eeb6cd57eb..9f7d27b225 100644
--- a/designer_base/src/com/fr/design/extra/ucenter/Client.java
+++ b/designer_base/src/com/fr/design/extra/ucenter/Client.java
@@ -19,7 +19,7 @@ import java.util.Map;
 public class Client extends PHPFunctions{
 
     public static String UC_IP = "211.149.195.54";
-    public static String UC_API = SiteCenter.getInstance().acquireUrlByKind("bbs.ucapi");
+    public static String UC_API = "";
     public static String UC_CONNECT = "";
     public static String UC_KEY = "Rc85U37411p4zdvcedm8D4t4D3l9Sa42H0kd98Gbd82aA99a61S2Z5LbQ9u430M0";
     public static String UC_APPID = "4";
@@ -86,6 +86,7 @@ public class Client extends PHPFunctions{
             sep = "&";
         }
         String $postdata = uc_api_requestdata(module, action, str.toString(), "");
+        UC_API = SiteCenter.getInstance().acquireUrlByKind("bbs.ucapi");
         return uc_fopen2(UC_API + "/index.php", 500000, $postdata, "", true, UC_IP, 20, true);
     }