diff --git a/Unity/Assets/Scripts/TH1_Data/MapData.cs b/Unity/Assets/Scripts/TH1_Data/MapData.cs
index 7cf66a6d6..a7fcb729e 100644
--- a/Unity/Assets/Scripts/TH1_Data/MapData.cs
+++ b/Unity/Assets/Scripts/TH1_Data/MapData.cs
@@ -111,6 +111,12 @@ namespace RuntimeData
             SetSinglePlayerCiv(civId, forceId);
         }
 
+        public MapConfig CreateRuntimeCopy()
+        {
+            var bytes = MemoryPackSerializer.Serialize(this);
+            return MemoryPackSerializer.Deserialize<MapConfig>(bytes);
+        }
+
         // MemoryPack 反序列化之后的后处理
         [MemoryPackOnDeserialized]
         public void OnAfterMemoryPackDeserialize()
@@ -1985,10 +1991,10 @@ namespace RuntimeData
         public MapData(MapConfig mapCfg, NetMode netMode)
         {
             MapID = (uint)Guid.NewGuid().GetHashCode();
-            MapConfig = mapCfg;
+            MapConfig = mapCfg.CreateRuntimeCopy();
             _idGenerator = new MapIdGenerator();
             
-            GridMap = new GridMapData(mapCfg, _idGenerator);
+            GridMap = new GridMapData(MapConfig, _idGenerator);
             PlayerMap = new PlayerMapData(this, _idGenerator, netMode);
             CityMap = new CityMapData();
             UnitMap = new UnitMapData();
@@ -2001,7 +2007,7 @@ namespace RuntimeData
             CityToGridDict = new Dictionary<uint, uint>();
             _gridToCityDict = new Dictionary<uint, uint>();
             _gridToUnitDict = new Dictionary<uint, uint>();
-            MatchSettlement.Init(this, mapCfg);
+            MatchSettlement.Init(this, MapConfig);
         }
 
         public MapData(MapData copyMap)
@@ -2102,7 +2108,6 @@ namespace RuntimeData
                 action.Param.MapData = this;
                 action.Param.RefreshParams();
             }
-            MapConfig?.ApplyTeamDiplomacy(this);
         }
         
         // 当场上有小兵受伤前