diff --git a/Editor/CheckVersionEditor.cs b/Editor/CheckVersionEditor.cs
index e52b8bc6..a8c6bf14 100644
--- a/Editor/CheckVersionEditor.cs
+++ b/Editor/CheckVersionEditor.cs
@@ -35,6 +35,7 @@ namespace XCharts
                 GUILayout.BeginHorizontal();
                 GUILayout.Label("最新版本：" + mgr.newVersion);
                 if (mgr.isCheck) GUILayout.Label("检测中...");
+                else if (mgr.isNetworkError) GUILayout.Label("检测失败：" + mgr.networkError);
                 else GUILayout.Label("有更新！");
                 if (GUILayout.Button("去Github主页"))
                 {
@@ -56,22 +57,27 @@ namespace XCharts
             else
             {
                 if (mgr.isCheck) GUILayout.Label("最新版本：检测中...");
+                else if (mgr.isNetworkError) GUILayout.Label("检测失败：" + mgr.networkError);
                 else GUILayout.Label("最新版本：" + mgr.newVersion);
 
-                if (!mgr.needUpdate && !mgr.isCheck)
+                GUILayout.Label("");
+                if (!mgr.isNetworkError && !mgr.needUpdate && !mgr.isCheck)
                 {
-                    GUILayout.Label("");
                     GUILayout.Label("已是最新版本！");
+                }
+                GUILayout.Label("");
+                if (!string.IsNullOrEmpty(mgr.desc))
+                {
+                    GUILayout.Label(mgr.desc);
                     GUILayout.Label("");
-                    if (!string.IsNullOrEmpty(mgr.desc))
-                    {
-                        GUILayout.Label(mgr.desc);
-                        GUILayout.Label("");
-                    }
-                    if (GUILayout.Button("去Github主页"))
-                    {
-                        Application.OpenURL(mgr.homepage);
-                    }
+                }
+                if (GUILayout.Button("去Github主页"))
+                {
+                    Application.OpenURL(mgr.homepage);
+                }
+                if (mgr.isNetworkError && GUILayout.Button("重新检测"))
+                {
+                    XChartsMgr.Instance.CheckVersion();
                 }
             }
         }
diff --git a/Runtime/Utility/XChartsMgr.cs b/Runtime/Utility/XChartsMgr.cs
index f18a2c55..0cd141ea 100644
--- a/Runtime/Utility/XChartsMgr.cs
+++ b/Runtime/Utility/XChartsMgr.cs
@@ -10,6 +10,7 @@ using System.Text;
 using System.Collections;
 using UnityEngine;
 using System.Text.RegularExpressions;
+using UnityEngine.Networking;
 
 namespace XCharts
 {
@@ -78,6 +79,8 @@ namespace XCharts
         public int newDate { get; private set; }
         public int newCheckDate { get; private set; }
         public bool isCheck { get; private set; }
+        public bool isNetworkError { get; private set; }
+        public string networkError { get; private set; }
 
         public bool needUpdate
         {
@@ -90,6 +93,8 @@ namespace XCharts
         public void CheckVersion()
         {
             isCheck = true;
+            isNetworkError = false;
+            networkError = "";
             StartCoroutine(GetVersion());
             if (date < newCheckDate)
             {
@@ -100,13 +105,17 @@ namespace XCharts
         IEnumerator GetVersion()
         {
             var url = "https://raw.githubusercontent.com/monitor1394/unity-ugui-XCharts/master/Assets/XCharts/version.json";
-            var web = new WWW(url);
+            var web = UnityWebRequest.Get(url);
             yield return web;
-            if (!string.IsNullOrEmpty(web.error))
-                Debug.LogError(web.error);
-            else
+            if (web.isNetworkError)
             {
-                var cv = JsonUtility.FromJson<XChartsVersion>(web.text);
+                isNetworkError = true;
+                networkError = web.error;
+                m_NewVersion = "-";
+            }
+            else if (web.responseCode == 200)
+            {
+                var cv = JsonUtility.FromJson<XChartsVersion>(web.downloadHandler.text);
                 m_NewVersion = cv.version + " (" + cv.date + ")";
                 newDate = cv.date;
                 newCheckDate = cv.checkdate;
@@ -115,20 +124,38 @@ namespace XCharts
                 web.Dispose();
                 isCheck = false;
             }
+            else
+            {
+                isCheck = false;
+                isNetworkError = true;
+                if (web.responseCode > 0)
+                    networkError = web.responseCode.ToString();
+                else if (!string.IsNullOrEmpty(web.error))
+                    networkError = web.error;
+                else
+                    networkError = "-";
+                m_NewVersion = "-";
+            }
         }
 
         IEnumerator GetChangeLog()
         {
             isCheck = true;
             var url = "https://raw.githubusercontent.com/monitor1394/unity-ugui-XCharts/master/Assets/XCharts/CHANGELOG.md";
-            var web = new WWW(url);
+            var web = new UnityWebRequest(url);
             yield return web;
-            if (!string.IsNullOrEmpty(web.error))
+            if (!web.isNetworkError)
+            {
                 Debug.LogError(web.error);
+            }
+            else if (web.responseCode == 200)
+            {
+                CheckLog(web.downloadHandler.text);
+                web.Dispose();
+                isCheck = false;
+            }
             else
             {
-                CheckLog(web.text);
-                web.Dispose();
                 isCheck = false;
             }
         }