diff --git a/backend/app/routers/information.py b/backend/app/routers/information.py
index e2be6b1..2ea2caa 100644
--- a/backend/app/routers/information.py
+++ b/backend/app/routers/information.py
@@ -1277,7 +1277,42 @@ async def batch_parse_deals(text: str = Body(..., embed=True)):
                 
                 # 尝试直接解析
                 data = json.loads(content.strip())
-                return {"success": True, "data": data}
+                # 对AI返回的数据进行冠字号矫正
+                def normalize_serial_ai(num_str):
+                    """矫正冠字号：确保是J0+9位数字，最后两位为01"""
+                    if not num_str.startswith('J0'):
+                        return None
+                    num = num_str[2:]  # 去掉J0
+                    diff = 9 - len(num)
+                    if diff == 0:
+                        return num_str
+                    elif diff == -1:
+                        # 多1位，去掉倒数第4位
+                        if len(num) >= 4:
+                            num = num[:-4] + num[-3:]
+                            if len(num) == 9:
+                                return 'J0' + num
+                    elif diff == 1:
+                        # 少1位，加0
+                        return 'J0' + '0' + num
+                    elif diff == -2:
+                        if len(num) >= 5:
+                            num = num[:-5] + num[-4:]
+                            if len(num) == 9:
+                                return 'J0' + num
+                    elif diff == 2:
+                        return 'J0' + '00' + num
+                    return None
+                
+                # 矫正每条记录的冠字号
+                corrected_data = []
+                for item in data:
+                    if 'serial' in item:
+                        normalized = normalize_serial_ai(item['serial'])
+                        if normalized:
+                            item['serial'] = normalized
+                            corrected_data.append(item)
+                return {"success": True, "data": corrected_data}
             except json.JSONDecodeError:
                 # 尝试用正则提取
                 match = re.search(r'\[.*\]', content, re.DOTALL)
@@ -1337,15 +1372,50 @@ def parse_deals_locally(text: str, default_packaging: str = '', default_date: st
         if not line or 'J0' not in line:
             continue
         
-        # 提取冠字号 J0 + 8-9位数字
-        serial_match = re.search(r'J0(\d{8,9})', line)
+        # 提取冠字号 J0 + 8-11位数字（可能有多位或少位）
+        serial_match = re.search(r'J0(\d{7,11})', line)
         if not serial_match:
             continue
         
+        # 冠字号矫正函数
+        def normalize_serial(num_str):
+            """矫正冠字号：确保是J0+9位数字，最后两位为01"""
+            num = num_str
+            diff = 9 - len(num)
+            if diff == 0:
+                # 正好9位，检查最后两位是否为01
+                if num[-2:] != '01':
+                    # 尝试矫正：去掉倒数第4位（如果倒数第4位不是0）
+                    if len(num) >= 4 and num[-4] != '0':
+                        num = num[:-4] + num[-3:]
+                        if num[-2:] == '01':
+                            return 'J0' + num
+                return 'J0' + num
+            elif diff == -1:
+                # 多1位（10位数字）→ 去掉倒数第4位
+                if len(num) >= 4:
+                    num = num[:-4] + num[-3:]
+                    if len(num) == 9:
+                        return 'J0' + num
+            elif diff == 1:
+                # 少1位（8位数字）→ 在J0后加0
+                return 'J0' + '0' + num
+            elif diff == -2:
+                # 多2位（11位数字）→ 去掉倒数第4、5位
+                if len(num) >= 5:
+                    num = num[:-5] + num[-4:]
+                    if len(num) == 9:
+                        return 'J0' + num
+            elif diff == 2:
+                # 少2位（7位数字）→ 在J0后加00
+                return 'J0' + '00' + num
+            return None  # 无法矫正
+        
         serial_num = serial_match.group(1)
-        if len(serial_num) == 9:
-            serial_num = serial_num[:8]
-        serial = 'J0' + serial_num
+        normalized = normalize_serial(serial_num)
+        if not normalized:
+            continue  # 跳过无法矫正的数据
+        serial = normalized
         
         # 提取价格 ¥xxx,xxx 或 xxx,xxx（必须在J0之后）
         serial_pos = line.find(serial)