diff --git a/examples/werewolf_game/evals/utils.py b/examples/werewolf_game/evals/utils.py
new file mode 100644
index 000000000..8705c1992
--- /dev/null
+++ b/examples/werewolf_game/evals/utils.py
@@ -0,0 +1,123 @@
+#!/usr/bin/env python
+# -*- coding:utf-8 -*-
+
+
+"""
+__info："utils for eval"
+__author:"[Aria](https://github.com/ariafyy)"
+__update："convert txt to json"
+"""
+from metagpt.const import WORKSPACE_ROOT, PROJECT_ROOT
+import re, json
+
+
+class Utils(object):
+    def __init__(self):
+        pass
+
+    def _action(self, text: str) -> str:
+        """
+        # get action
+        input: I vote to eliminate Player3
+        output: vote
+        """
+        text = text.lower()
+        if "vote" in text:
+            action = "vote"
+            return action
+        if "verify" in text:
+            action = "verify"
+            return action
+        if "kill" in text:
+            action = "kill"
+            return action
+        else:
+            action = "chat"
+            return action
+
+    def _life(self, text: str) -> str:
+        """
+        # get life
+        input: Kill Player6
+        output: dead
+        """
+        text = text.lower()
+        if re.search(r'\b(eliminated|killed|kill)\b', text, re.I):
+            life = 'dead'
+            dead_role = re.findall(r'\[(.*?)\]', text)
+            if re.search(r'no one was killed', text, re.I):
+                return "alive", []
+            else:
+                return life, dead_role
+        else:
+            life = "alive"
+            return life, []
+
+    def txt2data(self, file):
+        """
+        input: .txt file
+        output: data for json format
+        """
+        result = {}
+        count = 0
+        day = -1
+        flag = False
+
+        with open(file, "r") as f:
+            lines = f.readlines()
+            for line in lines:
+                if "Moderator(Moderator): 0" in line:
+                    flag = True
+                if flag:
+                    if "It’s dark, everyone close your eyes." in line:
+                        day += 1
+                        count = 0
+                    data = {}
+                    parts = line.split("|")
+                    data["role"] = parts[0].strip().split(":")[0]
+                    data["day"] = day
+                    data["turn"] = count
+                    if len(parts) > 1:
+                        data["text"] = parts[1].strip()
+                        data["action"] = self._action(data["text"])
+                        data["life"], data["dead_role"] = self._life(data["text"])
+                    else:
+                        continue
+                    key = "day_{}".format(day)
+                    if key not in result:
+                        result[key] = []
+                    result[key].append(data)
+                    count += 1
+            return result
+
+    def data2json(self, in_file):
+        """
+        input:.txt 
+        output:.json
+
+
+        output examples:
+        {
+          "day_0": [
+            {
+              "role": "Moderator(Moderator)",
+              "day": 0,
+              "turn": 0,
+              "text": "It’s dark, everyone close your eyes. I will talk with you/your team secretly at night.",
+              "action": "chat",
+              "life": "alive",
+              "dead_role": []
+            },{}]
+            ...
+            }
+        """
+        result = self.txt2data(in_file)
+        with open(WORKSPACE_ROOT / 'werewolf_transcript.json', "w", encoding='utf-8') as f:
+            json.dump(result, f, ensure_ascii=False, indent=2)
+            f.write('\n')
+
+
+if __name__ == '__main__':
+    txt_path = WORKSPACE_ROOT / "werewolf_transcript.txt"
+    log_path = PROJECT_ROOT / "logs/log.txt"
+    Utils().data2json(txt_path)