diff --git a/application/third_party/ctmobilefirst/models/api_model.php b/application/third_party/ctmobilefirst/models/api_model.php
index 8fca6ba2..e50bc667 100644
--- a/application/third_party/ctmobilefirst/models/api_model.php
+++ b/application/third_party/ctmobilefirst/models/api_model.php
@@ -428,7 +428,7 @@ class Api_model extends CI_Model {
     //根据图片URL判断CDN的地址
    function getPicCdn($picurl){
         $strCdn ="";
-        if (strpos($picurl,$this->WebUrl)!== false) {
+        if (strpos($picurl,$this->WebUrl)!== false || strpos($picurl,$this->WebCdn)!== false ) {
             $strCdn="";
         } else if (strpos($picurl,"allpicture")!== false){
             $strCdn = "//".$this->imagesUrl ;