diff --git a/mm_agents/prompts.py b/mm_agents/prompts.py
index 37609c4..2305aaa 100644
--- a/mm_agents/prompts.py
+++ b/mm_agents/prompts.py
@@ -1195,43 +1195,55 @@ AGUVIS_GROUNDING_APPEND_PROMPT = """<|recipient|>os
 pyautogui.{function_name}"""
 
 UITARS_ACTION_SPACE = """
-click(start_box='[x1, y1, x2, y2]')
-left_double(start_box='[x1, y1, x2, y2]')
-right_single(start_box='[x1, y1, x2, y2]')
-drag(start_box='[x1, y1, x2, y2]', end_box='[x3, y3, x4, y4]')
+click(start_box='<|box_start|>(x1,y1)<|box_end|>')
+left_double(start_box='<|box_start|>(x1,y1)<|box_end|>')
+right_single(start_box='<|box_start|>(x1,y1)<|box_end|>')
+drag(start_box='<|box_start|>(x1,y1)<|box_end|>', end_box='<|box_start|>(x3,y3)<|box_end|>')
 hotkey(key='')
 type(content='') #If you want to submit your input, use "\\n" at the end of `content`.
-scroll(start_box='[x1, y1, x2, y2]', direction='down or up or right or left')
+scroll(start_box='<|box_start|>(x1,y1)<|box_end|>', direction='down or up or right or left')
 wait() #Sleep for 5s and take a screenshot to check for any changes.
 finished()
 """
 
 UITARS_CALL_USR_ACTION_SPACE = """
-click(start_box='[x1, y1, x2, y2]')
-left_double(start_box='[x1, y1, x2, y2]')
-right_single(start_box='[x1, y1, x2, y2]')
-drag(start_box='[x1, y1, x2, y2]', end_box='[x3, y3, x4, y4]')
+click(start_box='<|box_start|>(x1,y1)<|box_end|>')
+left_double(start_box='<|box_start|>(x1,y1)<|box_end|>')
+right_single(start_box='<|box_start|>(x1,y1)<|box_end|>')
+drag(start_box='<|box_start|>(x1,y1)<|box_end|>', end_box='<|box_start|>(x3,y3)<|box_end|>')
 hotkey(key='')
 type(content='') #If you want to submit your input, use "\\n" at the end of `content`.
-scroll(start_box='[x1, y1, x2, y2]', direction='down or up or right or left')
+scroll(start_box='<|box_start|>(x1,y1)<|box_end|>', direction='down or up or right or left')
 wait() #Sleep for 5s and take a screenshot to check for any changes.
 finished()
 call_user() # Submit the task and call the user when the task is unsolvable, or when you need the user's help.
 """
 
+UITARS_NORMAL_ACTION_SPACE = """
+click(start_box='<|box_start|>(x1,y1)<|box_end|>')
+left_double(start_box='<|box_start|>(x1,y1)<|box_end|>')
+right_single(start_box='<|box_start|>(x1,y1)<|box_end|>')
+drag(start_box='<|box_start|>(x1,y1)<|box_end|>', end_box='<|box_start|>(x3,y3)<|box_end|>')
+hotkey(key='')
+type(content='') #If you want to submit your input, use "\\n" at the end of `content`.
+scroll(start_box='<|box_start|>(x1,y1)<|box_end|>', direction='down or up or right or left')
+wait() #Sleep for 5s and take a screenshot to check for any changes.
+finished(content='xxx') # Use escape characters \\', \\", and \\n in content part to ensure we can parse the content in normal python string format.
+"""
+
 UITARS_USR_PROMPT_NOTHOUGHT = """You are a GUI agent. You are given a task and your action history, with screenshots. You need to perform the next action to complete the task. 
 ## Output Format
 ```
 Action: ...
 ```
 ## Action Space
-click(start_box='[x1, y1, x2, y2]')
-left_double(start_box='[x1, y1, x2, y2]')
-right_single(start_box='[x1, y1, x2, y2]')
-drag(start_box='[x1, y1, x2, y2]', end_box='[x3, y3, x4, y4]')
+click(start_box='<|box_start|>(x1,y1)<|box_end|>')
+left_double(start_box='<|box_start|>(x1,y1)<|box_end|>')
+right_single(start_box='<|box_start|>(x1,y1)<|box_end|>')
+drag(start_box='<|box_start|>(x1,y1)<|box_end|>', end_box='<|box_start|>(x3,y3)<|box_end|>')
 hotkey(key='')
 type(content='') #If you want to submit your input, use "\\n" at the end of `content`.
-scroll(start_box='[x1, y1, x2, y2]', direction='down or up or right or left')
+scroll(start_box='<|box_start|>(x1,y1)<|box_end|>', direction='down or up or right or left')
 wait() #Sleep for 5s and take a screenshot to check for any changes.
 finished()
 call_user() # Submit the task and call the user when the task is unsolvable, or when you need the user's help.