diff --git a/Runtime/Code/SDK/GuruSDK.Analytics.cs b/Runtime/Code/SDK/GuruSDK.Analytics.cs
index 00f62cb..abc60e9 100644
--- a/Runtime/Code/SDK/GuruSDK.Analytics.cs
+++ b/Runtime/Code/SDK/GuruSDK.Analytics.cs
@@ -9,6 +9,12 @@ namespace Guru
     /// </summary>
     public partial class GuruSDK
     {
+        /// <summary>
+        /// 主线关卡类型
+        /// 只有传入此类型时才会进行 Blevel 的累加
+        /// </summary>
+        public const string LevelCategoryMain = "main";
+        
         //----------------- 关卡开始类型 ---------------------
         public const string EventLevelStartModePlay = "play";
         public const string EventLevelStartModeReplay = "replay";
@@ -60,7 +66,7 @@ namespace Guru
         /// <param name="startType"></param>
         /// <param name="isReplay"></param>
         public static void LogLevelStart(int level, string startType = EventLevelStartModePlay, 
-            string levelCategory = "main", string levelName = "", string levelID = "",
+            string levelCategory = LevelCategoryMain, string levelName = "", string levelID = "",
             bool isReplay = false)
         {
             if (!IsInitialSuccess)
@@ -79,7 +85,7 @@ namespace Guru
         /// <param name="levelCategory"></param>
         /// <param name="levelName"></param>
         /// <param name="levelID"></param>
-        public static void LogLevelContinue(int level, string levelCategory = "main",
+        public static void LogLevelContinue(int level, string levelCategory = LevelCategoryMain,
             string levelName = "", string levelID = "")
         {
             LogLevelStart(level, EventLevelStartModeContinue, levelCategory, levelName, levelID,  true);
@@ -92,7 +98,7 @@ namespace Guru
         /// <param name="levelCategory"></param>
         /// <param name="levelName"></param>
         /// <param name="levelID"></param>
-        public static void LogLevelReplay(int level, string levelCategory = "main",
+        public static void LogLevelReplay(int level, string levelCategory = LevelCategoryMain,
             string levelName = "", string levelID = "")
         {
             LogLevelStart(level, EventLevelStartModeReplay,levelCategory, levelName, levelID,  true);
@@ -102,7 +108,7 @@ namespace Guru
         /// 游戏胜利打点
         /// </summary>
         public static void LogLevelEnd(int level,  string result = EventLevelEndSuccess,
-            string levelCategory = "main", string levelName = "", string levelID = "",
+            string levelCategory = LevelCategoryMain, string levelName = "", string levelID = "",
             int? duration = null, int? step = null, int? score = null )
         {
             if (!IsInitialSuccess)
@@ -114,8 +120,11 @@ namespace Guru
             
             if (InitConfig.AutoRecordFinishedLevels)
             {
-                if(result == EventLevelEndSuccess) Model.SuccessLevelCount++; // 自动记录关卡完成次数
-                Model.TotalPlayedCount++; // 自动记录关卡总次数
+                if(result == EventLevelEndSuccess){
+                    if(levelCategory == LevelCategoryMain) Model.SuccessLevelCount++; // 自动记录关卡完成次数
+                    Model.TotalPlayedCount++; // 自动记录关卡总次数
+                }
+                
 
                 Analytics.BLevel = Model.SuccessLevelCount; // 记录 BLevel
                 Analytics.BPlay = Model.TotalPlayedCount; // 记录 BPlay
@@ -132,7 +141,7 @@ namespace Guru
         /// 需要为游戏记录详细的失败原因
         /// </summary>
         public static void LogLevelFail(int level,
-            string levelCategory = "main",string levelName = "", string levelID = "",
+            string levelCategory = LevelCategoryMain, string levelName = "", string levelID = "",
             int? duration = null, int? step = null, int? score = null )
         {
             LogLevelEnd(level, EventLevelEndFail, levelCategory, levelName, levelID, duration, step, score);
@@ -142,7 +151,7 @@ namespace Guru
         /// 因退出关卡导致游戏失败
         /// </summary>
         public static void LogLevelFailExit(int level,
-            string levelCategory = "main", string levelName = "", string levelID = "",
+            string levelCategory = LevelCategoryMain, string levelName = "", string levelID = "",
             int? duration = null, int? step = null, int? score = null)
         {
             LogLevelEnd(level, EventLevelEndExit, levelCategory, levelName, levelID, duration, step, score);
@@ -152,7 +161,7 @@ namespace Guru
         /// 因关卡超时导致游戏失败
         /// </summary>
         public static void LogLevelFailTimeout(int level,
-            string levelCategory = "main", string levelName = "", string levelID = "",
+            string levelCategory = LevelCategoryMain, string levelName = "", string levelID = "",
             int? duration = null, int? step = null, int? score = null)
         {
             LogLevelEnd(level, EventLevelEndTimeout, levelCategory, levelName, levelID, duration, step, score);