diff --git a/Admin.NET/Admin.NET.Core/SqlSugar/SqlSugarSetup.cs b/Admin.NET/Admin.NET.Core/SqlSugar/SqlSugarSetup.cs
index 2ed2ea4c..8e0f477b 100644
--- a/Admin.NET/Admin.NET.Core/SqlSugar/SqlSugarSetup.cs
+++ b/Admin.NET/Admin.NET.Core/SqlSugar/SqlSugarSetup.cs
@@ -23,8 +23,6 @@ public static class SqlSugarSetup
 
         // 自定义雪花Id算法
         StaticConfig.CustomSnowFlakeFunc = YitIdHelper.NextId;
-        // 注册 MongoDb
-        InstanceFactory.CustomAssemblies = [typeof(SqlSugar.MongoDb.MongoDbProvider).Assembly];
         // 配置字符串表达式
         StaticConfig.DynamicExpressionParserType = typeof(DynamicExpressionParser);
         StaticConfig.DynamicExpressionParsingConfig = new ParsingConfig
@@ -73,6 +71,10 @@ public static class SqlSugarSetup
     /// <param name="config"></param>
     public static void SetDbConfig(DbConnectionConfig config)
     {
+        // 注册 MongoDb
+        if (config.DbType == SqlSugar.DbType.MongoDb)
+            InstanceFactory.CustomAssemblies = [typeof(SqlSugar.MongoDb.MongoDbProvider).Assembly];
+
         // 解密数据库连接串
         if (config.DbSettings.EnableConnEncrypt)
             config.ConnectionString = CryptogramHelper.SM2Decrypt(config.ConnectionString);