diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 1293042..0a11120 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -42,6 +42,7 @@ void Room::Init()
     xtimer.Init(RoomXGetTickCount, this, 100, 100);
     xtimer_attacher.xtimer = &xtimer;
     grid_service.Init(MAP_WIDTH, MAP_HEIGHT, MAP_CELL_WIDTH);
+    map_service.Init(MAP_WIDTH / MAP_GRID_WIDTH, MAP_HEIGHT / MAP_GRID_WIDTH, MAP_GRID_WIDTH);
 
     CreateThings();
     stats_timer_ = a8::Timer::Instance()->AddRepeatTimer(
@@ -94,6 +95,7 @@ void Room::UnInit()
     }
     removed_robot_hash_.clear();
     grid_service.UnInit();
+    map_service.UnInit();
 }
 
 void Room::Update(int delta_time)
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index eb53178..fff6899 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -6,6 +6,7 @@
 #include "frameevent.h"
 #include "framemaker.h"
 #include "gridservice.h"
+#include "mapservice.h"
 
 namespace MetaData
 {
@@ -45,6 +46,7 @@ public:
     a8::XTimer xtimer;
     Plane plane;
     GridService grid_service;
+    MapService map_service;
     long long battle_start_frameno_ = 0;
 
     ~Room();