diff --git a/app/ai/resume_diagnoser/diagnoser.py b/app/ai/resume_diagnoser/diagnoser.py
index 01c47e7..e4d5880 100644
--- a/app/ai/resume_diagnoser/diagnoser.py
+++ b/app/ai/resume_diagnoser/diagnoser.py
@@ -1,9 +1,10 @@
 """简历诊断 AI 引擎：并行诊断 + 汇总评价"""
 
 import asyncio
-import json
 import re
 
+from json_repair import repair_json
+
 from langchain_core.output_parsers import StrOutputParser
 from langchain_core.prompts import ChatPromptTemplate
 
@@ -16,14 +17,7 @@ def _parse_json(text: str) -> dict:
     """解析 AI 输出的 JSON，自动去除 markdown 代码块包裹，容错处理"""
     cleaned = re.sub(r"^```(?:json)?\s*\n?", "", text.strip())
     cleaned = re.sub(r"\n?```\s*$", "", cleaned)
-    try:
-        return json.loads(cleaned)
-    except json.JSONDecodeError:
-        # AI 可能在 JSON 字符串值中嵌入了未转义的引号，尝试提取最外层 { }
-        match = re.search(r"\{[\s\S]*\}", cleaned)
-        if match:
-            return json.loads(match.group())
-        raise
+    return repair_json(cleaned, return_objects=True)
 
 
 # 诊断链（StrOutputParser 拿原始文本，再手动解析 JSON，避免 markdown 代码块导致解析失败）
diff --git a/requirements.txt b/requirements.txt
index 75d2f61..129f8b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,6 +31,9 @@ loguru>=0.7.2,<1.0.0
 shortuuid>=1.0.11,<2.0.0
 PyJWT>=2.8.0
 
+# JSON 容错解析
+json-repair>=0.30.0
+
 # 数据处理
 pandas>=2.2.0
 numpy>=1.26.0