diff --git a/server/gameserver/metadata.cc b/server/gameserver/metadata.cc
index 2c9dce2..4954d46 100644
--- a/server/gameserver/metadata.cc
+++ b/server/gameserver/metadata.cc
@@ -641,7 +641,19 @@ namespace MetaData
 
     void AirRaid::Init()
     {
-
+        {
+            std::vector<std::string> strings;
+            a8::Split(i->raid_wave(), strings, '|');
+            for (auto& str : strings) {
+                std::vector<std::string> strings2;
+                a8::Split(str, strings2, ':');
+                raid_waves.push_back(std::make_tuple(
+                                                     a8::XValue(strings2[0]).GetInt(),
+                                                     a8::XValue(strings2[1]).GetInt()
+                                                     )
+                                     );
+            }
+        }
     }
 
     void AirLine::Init()
diff --git a/server/gameserver/metadata.h b/server/gameserver/metadata.h
index 8ca15c6..0153583 100755
--- a/server/gameserver/metadata.h
+++ b/server/gameserver/metadata.h
@@ -171,6 +171,7 @@ namespace MetaData
     struct AirRaid
     {
         const metatable::AirRaid* i = nullptr;
+        std::vector<std::tuple<int, int>> raid_waves;
 
         void Init();
     };
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 59a4f54..afa14f0 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -3945,32 +3945,49 @@ void Room::AirRaid(int airraid_id)
     auto raid_cb =
         [] (const a8::XParams& param)
         {
+             auto bomb_cb =
+                 [] (const a8::XParams& param)
+                 {
+                     Room* room = (Room*)param.sender.GetUserData();
+                     if (room->IsGameOver()) {
+                         return;
+                     }
+                     MetaData::AirRaid* raid_meta = (MetaData::AirRaid*)param.param1.GetUserData();
+                     a8::Vec2 center = a8::Vec2
+                         (
+                          param.param2.GetDouble(),
+                          param.param3.GetDouble()
+                          );
+                     a8::Vec2 dir = a8::Vec2::UP;
+                     dir.Rotate(a8::RandAngle());
+                     a8::Vec2 pos = center +  dir * (50 + rand() % 100);;
+                     RoomObstacle* obstacle = room->CreateObstacle
+                         (
+                          raid_meta->i->bomb_id(),
+                          pos.x,
+                          pos.y
+                          );
+                     obstacle->Active();
+                 };
              Room* room = (Room*)param.sender.GetUserData();
              if (room->IsGameOver()) {
                  return;
              }
              MetaData::AirRaid* raid_meta = (MetaData::AirRaid*)param.param1.GetUserData();
-             a8::Vec2 center = a8::Vec2
-             (
-              param.param2.GetDouble(),
-              param.param3.GetDouble()
-              );
-             for (int i = 0; i < raid_meta->i->bomb_num(); ++i) {
-                 a8::Vec2 dir = a8::Vec2::UP;
-                 dir.Rotate(a8::RandAngle());
-                 a8::Vec2 pos = center +  dir * (50 + rand() % 100);;
-                 RoomObstacle* obstacle = room->CreateObstacle
-                     (
-                      raid_meta->i->bomb_id(),
-                      pos.x,
-                      pos.y
-                      );
-                 obstacle->Active();
-                 if (obstacle) {
+             for (auto& tuple : raid_meta->raid_waves) {
+                 int num = std::get<0>(tuple);
+                 int delay = std::get<1>(tuple);
+                 for (int i = 0; i < num; ++i) {
+                     room->xtimer.AddDeadLineTimerAndAttach
+                         (delay / FRAME_RATE_MS,
+                          a8::XParams()
+                          .SetSender(room)
+                          .SetParam1(raid_meta)
+                          .SetParam2(param.param2.GetDouble())
+                          .SetParam3(param.param3.GetDouble()),
+                          bomb_cb,
+                          &room->xtimer_attacher_.timer_list_);
                  }
-                 #if 1
-                 room->BroadcastDebugMsg(a8::Format("airraid pos=%d:%d", {pos.x, pos.y}));
-                 #endif
              }
         };
 
diff --git a/server/tools/protobuild/metatable.proto b/server/tools/protobuild/metatable.proto
index baf3db8..17b1b92 100755
--- a/server/tools/protobuild/metatable.proto
+++ b/server/tools/protobuild/metatable.proto
@@ -269,7 +269,7 @@ message AirRaid
     optional int32 time = 2;
     optional int32 appear_time = 3;
     optional int32 bomb_id = 4;
-    optional int32 bomb_num = 5;
+    optional string raid_wave = 5;
     optional float rad = 6;
 }