diff --git a/sim_scenes/featured/jupiter_moon_protects_earth.py b/sim_scenes/featured/jupiter_moon_protects_earth.py
index e4345c7b7dc8c098aafb06d29f1049eddf3305e2..a75cc092e5c7cad63231e762cbc3a9066476b32b 100644
--- a/sim_scenes/featured/jupiter_moon_protects_earth.py
+++ b/sim_scenes/featured/jupiter_moon_protects_earth.py
@@ -241,7 +241,10 @@ class JupiterMoonProtectsEarthSim(UniverseSimScenes):
         camera_look_at(self.sun)
 
     def on_ready(self):
-        from ursina import application
+        from ursina import application, window
+
+        # window.title = '宇宙模拟器(universe sim)'
+
         # 运行前触发
         self.text_panel = create_text_panel(font="fonts/DroidSansFallback.ttf", font_scale=1.3)
         self.text_panel.text = self.colliding_info % (0, "0.0%",
diff --git a/sim_scenes/universe_sim_scenes.py b/sim_scenes/universe_sim_scenes.py
index 668fa3b90a38123bea687dfeed5876d73087b48b..774e5c448b4b9f2d16fcb3c5ed21c54f96c74b30 100644
--- a/sim_scenes/universe_sim_scenes.py
+++ b/sim_scenes/universe_sim_scenes.py
@@ -8,7 +8,7 @@
 # ==============================================================================
 from objs import CoreValagaClas
 import sys
-from ursina import application
+from ursina import application, window
 
 
 class UniverseSimScenes:
@@ -30,6 +30,9 @@ class UniverseSimScenes:
             cls.record_rate = 2
             UniverseSimScenes.screen_record = True
             application.time_scale = 0.00001
+            # from ursina import application, window
+
+            window.title = "rec_"+sys.argv[1]
 
         instance = super().__new__(cls)
         return instance
diff --git a/simulators/ursina_simulator.py b/simulators/ursina_simulator.py
index 03273b74b120051d2d7ba404ab1cef5653c04eed..580541d8d99ae236840fac57e05351ee181a946f 100644
--- a/simulators/ursina_simulator.py
+++ b/simulators/ursina_simulator.py
@@ -39,7 +39,8 @@ class UrsinaSimulator(Simulator):
 
     def __init__(self, bodies_sys: System):
         # window.borderless = False
-        window.title = '宇宙模拟器(universe sim)'  # 'universe_sim'  # '宇宙模拟器'
+        if not str(window.title).startswith("rec_"):
+            window.title = '宇宙模拟器(universe sim)'  # 'universe_sim'  # '宇宙模拟器'
         icon = find_file("images/icon.ico")
         window.icon = icon
         self.app = Ursina()
diff --git a/tools/sim_video_cap.bat b/tools/sim_video_cap.bat
index 025a05f31efb86ea73dff7ec34a8d73767f9862a..72b004c43efdb04ac1aa0722acc422f9a3a2d8f7 100644
--- a/tools/sim_video_cap.bat
+++ b/tools/sim_video_cap.bat
@@ -21,6 +21,6 @@ cd %SimFilePath%
 start python -m %SimFileName% %3
 
 cd %SimDir%\tools
-python -m sim_video_cap --save_name=%param3% --wait=%param4%
+python -m sim_video_cap --save_name=%param3% --wait=%param4% --window_name=rec_%param3%
 
 
diff --git a/tools/sim_video_cap.py b/tools/sim_video_cap.py
index 0dc85a341cc20a7470261566bd5f7628a637094e..99f973b90c07b10bd271251bd09715ad8fbb4f4a 100644
--- a/tools/sim_video_cap.py
+++ b/tools/sim_video_cap.py
@@ -11,7 +11,7 @@ import win32api
 import traceback
 
 
-def get_window_handle(window_name="宇宙模拟器(universe sim)"):
+def get_window_handle(window_name):
     """
     获取模拟器窗口句柄
     @param window_name:
@@ -35,6 +35,7 @@ def get_args():
     parser.add_argument('--total_time', type=int, default=10000000, help='video total time')
     parser.add_argument('--save_name', type=str, default='jupiter_moon_protects_earth7.mp4', help='save file name')
     parser.add_argument('--wait', type=int, default=0, help='wait for recoding')
+    parser.add_argument('--window_name', type=str, default="宇宙模拟器(universe sim)", help='宇宙模拟器(universe sim)')
 
     # parser.add_argument('--screen_type', default=0, type=int, choices=[0, 1], help='1: full screen, 0: region screen')
     args = parser.parse_args()
@@ -44,7 +45,8 @@ def get_args():
     args.save_name = rename_exists(args.save_name)
 
     print("save_name:", args.save_name)
-    print("wait:", args.wait)
+    print("save_name:", args.save_name)
+    print("window_name:", args.window_name)
     if args.save_name == '':
         args.save_name = 'video.mp4'
     return args
@@ -107,10 +109,11 @@ def wait_sec(sec=0):
 
 
 def sim_window_screen_shot(wait_ses=-1, retry_times=3):
+    global args
     times = wait_ses * 100
     while True:
         handle, desktop_dc, img_dc, img = None, None, None, None
-        handle = get_window_handle()
+        handle = get_window_handle(args.window_name)
         if handle > 0:
             desktop_dc = win32gui.GetWindowDC(handle)
             width, height = get_window_size(handle)
@@ -170,7 +173,7 @@ def check_img(img):
 
 if __name__ == '__main__':
     args = get_args()
-    handle = get_window_handle()
+    handle = get_window_handle(args.window_name)
     # print(get_args())
     print("请在10秒内打开模拟器")
     img = sim_window_screen_shot(10)