diff --git a/expo/MCTS.py b/expo/MCTS.py
index 8e685cc0a..7de123572 100644
--- a/expo/MCTS.py
+++ b/expo/MCTS.py
@@ -26,7 +26,9 @@ def initialize_di_root_node(state, reflection: bool = True):
     return role, Node(parent=None, state=state, action=None, value=0)
 
 
-def create_initial_state(task, start_task_id, data_config, low_is_better: bool, name: str, special_instruction: str):
+def create_initial_state(
+    task, start_task_id, data_config, low_is_better: bool, name: str, special_instruction: str, args
+):
     initial_state = {
         "task": task,
         "work_dir": data_config["work_dir"],
@@ -40,6 +42,7 @@ def create_initial_state(task, start_task_id, data_config, low_is_better: bool,
         "has_run": False,
         "start_task_id": start_task_id,
         "low_is_better": low_is_better,
+        "role_timeout": args.role_timeout,
     }
     os.makedirs(initial_state["node_dir"], exist_ok=True)
     return initial_state
diff --git a/expo/data.yaml b/expo/data.yaml
index f1556c519..4c6549490 100644
--- a/expo/data.yaml
+++ b/expo/data.yaml
@@ -1,4 +1,3 @@
 datasets_dir: "D:/work/automl/datasets" # path to the datasets directory
 work_dir: ../workspace # path to the workspace directory
-role_dir: storage/SELA # path to the role directory
-role_timeout: 1000 # timeout for each node/role in seconds
\ No newline at end of file
+role_dir: storage/SELA # path to the role directory
\ No newline at end of file
diff --git a/expo/experimenter/aug.py b/expo/experimenter/aug.py
index 97b819802..bcfa5d4ad 100644
--- a/expo/experimenter/aug.py
+++ b/expo/experimenter/aug.py
@@ -34,7 +34,9 @@ class AugExperimenter(Experimenter):
 
         results = []
         for i in range(self.args.num_experiments):
-            di = ResearchAssistant(node_id=str(i), use_reflection=self.args.reflection)
+            di = ResearchAssistant(
+                node_id=str(i), use_reflection=self.args.reflection, role_timeout=self.args.role_timeout
+            )
             di.role_dir = f"{di.role_dir}_{self.args.task}"
             requirement = user_requirement + EXPS_PROMPT.format(experience=exps[i])
             print(requirement)
diff --git a/expo/experimenter/experimenter.py b/expo/experimenter/experimenter.py
index c6ead281b..9aa879e24 100644
--- a/expo/experimenter/experimenter.py
+++ b/expo/experimenter/experimenter.py
@@ -27,6 +27,7 @@ class Experimenter:
             low_is_better=self.args.low_is_better,
             name=self.args.name,
             special_instruction=self.args.special_instruction,
+            args=self.args,
         )
 
     async def run_di(self, di, user_requirement, run_idx):
@@ -82,7 +83,9 @@ class Experimenter:
         results = []
 
         for i in range(self.args.num_experiments):
-            di = ResearchAssistant(node_id="0", use_reflection=self.args.reflection)
+            di = ResearchAssistant(
+                node_id="0", use_reflection=self.args.reflection, role_timeout=self.args.role_timeout
+            )
             score_dict = await self.run_di(di, user_requirement, run_idx=i)
             results.append(
                 {"idx": i, "score_dict": score_dict, "user_requirement": user_requirement, "args": vars(self.args)}
diff --git a/expo/research_assistant.py b/expo/research_assistant.py
index 8fadeb7fb..c574d5b18 100644
--- a/expo/research_assistant.py
+++ b/expo/research_assistant.py
@@ -6,7 +6,7 @@ import os
 
 from pydantic import model_validator
 
-from expo.utils import DATA_CONFIG, mcts_logger, save_notebook
+from expo.utils import mcts_logger, save_notebook
 from metagpt.actions.di.write_analysis_code import WriteAnalysisCode
 from metagpt.const import SERDESER_PATH
 from metagpt.roles.di.data_interpreter import DataInterpreter
@@ -39,13 +39,13 @@ class TimeoutException(Exception):
     pass
 
 
-def async_timeout(seconds):
+def async_timeout():
     def decorator(func):
         async def wrapper(self, *args, **kwargs):
             try:
-                result = await asyncio.wait_for(func(self, *args, **kwargs), timeout=seconds)
+                result = await asyncio.wait_for(func(self, *args, **kwargs), timeout=self.role_timeout)
             except asyncio.TimeoutError:
-                text = f"Function timed out after {seconds} seconds"
+                text = f"Function timed out after {self.role_timeout} seconds"
                 mcts_logger.error(text)
                 self.save_state()
                 raise TimeoutException(text)
@@ -61,6 +61,7 @@ class ResearchAssistant(DataInterpreter):
     start_task_id: int = 1
     state_saved: bool = False
     role_dir: str = SERDESER_PATH.joinpath("team", "environment", "roles", "Experimenter")
+    role_timeout: int = 1000
 
     def get_node_name(self):
         return f"Node-{self.node_id}"
@@ -163,7 +164,7 @@ class ResearchAssistant(DataInterpreter):
             self.planner.plan.task_map[task_id] for task_id in sorted(self.planner.plan.task_map.keys())
         ]
 
-    @async_timeout(DATA_CONFIG["role_timeout"])
+    @async_timeout()
     @role_raise_decorator
     async def run(self, with_message=None) -> Message | None:
         """Observe, and think and act based on the results of the observation"""
diff --git a/expo/resources/MCTS-Experimenter.jpg b/expo/resources/MCTS-Experimenter.jpg
new file mode 100644
index 000000000..bbae98ee3
Binary files /dev/null and b/expo/resources/MCTS-Experimenter.jpg differ
diff --git a/expo/run_experiment.py b/expo/run_experiment.py
index fbd05d776..49d058f13 100644
--- a/expo/run_experiment.py
+++ b/expo/run_experiment.py
@@ -18,6 +18,7 @@ def get_args():
         default="mcts",
         choices=["mcts", "aug", "base", "custom", "greedy", "autogluon", "random", "autosklearn"],
     )
+    parser.add_argument("--role_timeout", type=int, default=1000)
     get_di_args(parser)
     get_mcts_args(parser)
     get_aug_exp_args(parser)