diff --git a/B3WeChat/Entities/ErrorObject.cs b/B3WeChat/Entities/ErrorObject.cs
index 4239fe1..cdf0a97 100644
--- a/B3WeChat/Entities/ErrorObject.cs
+++ b/B3WeChat/Entities/ErrorObject.cs
@@ -7,7 +7,15 @@ namespace BWP.B3WeChat.Entities
 {
   public class ErrorObject
   {
-    public string errcode { get; set; }
+    public int errcode { get; set; }
     public string errmsg { get; set; }
+
+    public bool IsError
+    {
+      get
+      {
+        return errcode > 0;
+      }
+    }
   }
 }
\ No newline at end of file
diff --git a/B3WeChat/Entities/TokenObject.cs b/B3WeChat/Entities/TokenObject.cs
index a4604f8..5e3052b 100644
--- a/B3WeChat/Entities/TokenObject.cs
+++ b/B3WeChat/Entities/TokenObject.cs
@@ -8,9 +8,10 @@ namespace BWP.B3WeChat.Entities
   /// <summary>
   /// Token对象
   /// </summary>
-  public class TokenObject
+  public class TokenObject:ErrorObject
   {
     public string access_token { get; set; }
     public string expires_in { get; set; }
+
   }
 }
\ No newline at end of file
diff --git a/B3WeChat/Utils/InOutMessageUtil.cs b/B3WeChat/Utils/InOutMessageUtil.cs
index 9f2c56c..4706b9e 100644
--- a/B3WeChat/Utils/InOutMessageUtil.cs
+++ b/B3WeChat/Utils/InOutMessageUtil.cs
@@ -48,6 +48,10 @@ namespace BWP.B3WeChat.Utils
         responseBody = Encoding.UTF8.GetString(bytes);
         JavaScriptSerializer jsonHelper = new JavaScriptSerializer(); logger.Info("GetToken_responseBody:" + responseBody);
         TokenObject obj = jsonHelper.Deserialize<TokenObject>(responseBody);
+        if (obj.IsError)
+        {
+          throw new Exception(string.Format("{0}:{1}", obj.errcode, obj.errmsg));
+        }
         if (obj != null)
         {
           token = obj.access_token;