diff --git a/Src/Asp.Net/SqlServerTest/UnitTest/UCodeFirst.cs b/Src/Asp.Net/SqlServerTest/UnitTest/UCodeFirst.cs
index 3c853a7d5..f80ffa02b 100644
--- a/Src/Asp.Net/SqlServerTest/UnitTest/UCodeFirst.cs
+++ b/Src/Asp.Net/SqlServerTest/UnitTest/UCodeFirst.cs
@@ -10,9 +10,19 @@ namespace OrmTest
     {
         public static void CodeFirst()
         {
+            Db.CodeFirst.InitTables<UnitCodeFirstpks2>();
             if (Db.DbMaintenance.IsAnyTable("UnitCodeTest1", false))
                 Db.DbMaintenance.DropTable("UnitCodeTest1");
             Db.CodeFirst.InitTables<UnitCodeTest1>();
+            Db.CodeFirst.InitTables<UnitCodeFirstpks2>();
+        }
+
+        public class UnitCodeFirstpks2
+        {
+            [SqlSugar.SugarColumn(IsPrimaryKey =true)]
+            public string id { get; set; }
+            [SqlSugar.SugarColumn(IsPrimaryKey = true)]
+            public string id2 { get; set; }
         }
         public class UnitCodeTest1
         {
diff --git a/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs b/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
index 8f9bda534..233e19033 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
@@ -179,7 +179,8 @@ namespace SqlSugar
         {
             tableName = this.SqlBuilder.GetTranslationTableName(tableName);
             var columnName = string.Join(",", columnNames);
-            string sql = string.Format(this.AddPrimaryKeySql, tableName, string.Format("PK_{0}_{1}", this.SqlBuilder.GetNoTranslationColumnName(columnNames.First()), this.SqlBuilder.GetNoTranslationColumnName(columnNames.First())), columnName);
+            var pkName = string.Format("PK_{0}_{1}", this.SqlBuilder.GetNoTranslationColumnName(tableName), columnName.Replace(",","_"));
+            string sql = string.Format(this.AddPrimaryKeySql, tableName,pkName, columnName);
             this.Context.Ado.ExecuteCommand(sql);
             return true;
         }