diff --git a/examples/werewolf_game/evals/utils.py b/examples/werewolf_game/evals/utils.py
new file mode 100644
index 000000000..d788496a3
--- /dev/null
+++ b/examples/werewolf_game/evals/utils.py
@@ -0,0 +1,60 @@
+'''
+Filename: MetaGPT/examples/werewolf_game/evals/utils.py
+Created Date: Oct 11, 2023
+Author: [Aria](https://github.com/ariafyy)
+'''
+from metagpt.const import WORKSPACE_ROOT, PROJECT_ROOT
+import re
+
+
+class Utils:
+    """Utils: utils of logs"""
+    
+    @staticmethod
+    def polish_log(in_logfile, out_txtfile):
+        """polish logs for evaluation"""
+        pattern_text = r"(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3}) \| (\w+) +\| ([\w\.]+:\w+:\d+) - (.*\S)"
+        pattern_player = r"(Player(\d{1}): \w+)"
+        pattern_start = False
+        json_start = False
+
+        with open(in_logfile, "r") as f, open(out_txtfile, "w") as out:
+            for line in f.readlines():
+                matches = re.match(pattern_text, line)
+                if matches:
+                    message = matches.group(4).strip()
+                    pattern_start = True
+                    json_start = False
+
+                    if "Moderator(Moderator) ready to InstructSpeak" not in message and "Moderator(Moderator) ready to ParseSpeak" not in message and "Total running cost:" not in message:
+                        out.write("- " + message + '\n')
+                    else:
+                        out.write('\n')
+
+                elif pattern_start and not matches:
+                    if "gpt-4 may update over time" in line:
+                        line = ""
+                    out.write(line)
+
+                elif line.strip().startswith("{"):
+                    out.write(line.strip())
+                    json_start = True
+
+                elif json_start and not line.strip().endswith("}"):
+                    out.write(line.strip())
+
+                elif json_start and line.strip().endswith("}"):
+                    out.write(line.strip())
+                    json_start = False
+
+                elif line.startswith("(User):") or line.startswith("********** STEP:") or re.search(pattern_player,line):
+                    out.write(line)
+
+                else:
+                    out.write("\n")
+
+
+if __name__ == '__main__':
+    in_logfile = PROJECT_ROOT / "logs/log.txt"
+    out_txtfile = "input your wish path"
+    Utils().polish_log(in_logfile, out_txtfile)