diff --git a/Assets/XCharts/Editor/Utility/ThemeCheck.cs b/Assets/XCharts/Editor/Utility/ThemeCheck.cs
index c511cba7..e3ce8618 100644
--- a/Assets/XCharts/Editor/Utility/ThemeCheck.cs
+++ b/Assets/XCharts/Editor/Utility/ThemeCheck.cs
@@ -25,6 +25,8 @@ namespace XCharts
         {
             if (!IsThemeAsset(assetPath)) return;
             var obj = AssetDatabase.LoadAssetAtPath<TextAsset>(assetPath);
+            if (obj == null || obj.text == null) return;
+            if (!obj.text.Contains("m_Theme")) return;
             if (XChartsSettings.AddJsonTheme(obj))
             {
                 XThemeMgr.ReloadThemeList();
@@ -54,6 +56,7 @@ namespace XCharts
         private static bool IsThemeAsset(string assetPath)
         {
             if (!assetPath.EndsWith(".json")) return false;
+            if (!assetPath.StartsWith("XTheme")) return false;
             return true;
         }
     }
diff --git a/Assets/XCharts/Runtime/Mgr/XThemeMgr.cs b/Assets/XCharts/Runtime/Mgr/XThemeMgr.cs
index 9b6ab84a..c702f9b8 100644
--- a/Assets/XCharts/Runtime/Mgr/XThemeMgr.cs
+++ b/Assets/XCharts/Runtime/Mgr/XThemeMgr.cs
@@ -25,7 +25,7 @@ namespace XCharts
             AddTheme(ChartTheme.Dark);
             foreach (var json in XChartsSettings.customThemes)
             {
-                if (json != null)
+                if (json != null && !string.IsNullOrEmpty(json.text))
                 {
                     var theme = JsonUtility.FromJson<ChartTheme>(json.text);
                     AddTheme(theme);
@@ -36,6 +36,7 @@ namespace XCharts
 
         public static void AddTheme(ChartTheme theme)
         {
+            if (theme == null) return;
             if (!XChartsMgr.Instance.m_ThemeDict.ContainsKey(theme.themeName))
             {
                 XChartsMgr.Instance.m_ThemeDict.Add(theme.themeName, theme);
diff --git a/Assets/XCharts/Runtime/XChartsSettings.cs b/Assets/XCharts/Runtime/XChartsSettings.cs
index f8db1531..d2b09b70 100644
--- a/Assets/XCharts/Runtime/XChartsSettings.cs
+++ b/Assets/XCharts/Runtime/XChartsSettings.cs
@@ -152,7 +152,7 @@ namespace XCharts
 
         public static bool AddJsonTheme(TextAsset theme)
         {
-            if (theme == null) return false;
+            if (theme == null || string.IsNullOrEmpty(theme.text)) return false;
             if (!Instance.m_CustomThemes.Contains(theme))
             {
                 Instance.m_CustomThemes.Add(theme);