diff --git a/Src/Asp.NetCore2/SqlSugar.ClickHouseCore/ClickHouse/SqlBuilder/ClickHouseInsertBuilder.cs b/Src/Asp.NetCore2/SqlSugar.ClickHouseCore/ClickHouse/SqlBuilder/ClickHouseInsertBuilder.cs
index 6602e6c1e..b77be7898 100644
--- a/Src/Asp.NetCore2/SqlSugar.ClickHouseCore/ClickHouse/SqlBuilder/ClickHouseInsertBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSugar.ClickHouseCore/ClickHouse/SqlBuilder/ClickHouseInsertBuilder.cs
@@ -98,7 +98,7 @@ namespace SqlSugar.ClickHouse
             {
                 date = UtilMethods.GetMinDate(this.Context.CurrentConnectionConfig);
             }
-            return "'" + date.ToString("yyyy-MM-dd HH:mm:ss.fff") + "'";
+            return "'" + date.ToString("yyyy-MM-dd HH:mm:ss") + "'";
         }
 
         private string GetString(object value)