diff --git a/apps/ofm/models.py b/apps/ofm/models.py
index f22a132e..6fc1d986 100644
--- a/apps/ofm/models.py
+++ b/apps/ofm/models.py
@@ -148,7 +148,7 @@ class Publicity(CommonBDModel):
     # 记录编号自动生成
     def save(self, *args, **kwargs):
         if not self.number:
-            last_number = self.__class__.objects.filter(number__startswith=f"(GXKG-{datetime.now().year}-)").order_by('-id').first()
+            last_number = self.__class__.objects.filter(number__startswith=f"GXKG-{datetime.now().year}-").order_by('-number').first()
             if last_number:
                 try:
                     last_num = int(last_number.number.split('-')[-1])
@@ -157,7 +157,7 @@ class Publicity(CommonBDModel):
             else:
                 last_num =0
             # 格式化编号，带补零
-            self.number = f"(GXKG-{datetime.now().year}-{last_num+1:02d})"
+            self.number = f"GXKG-{datetime.now().year}-{last_num+1:02d}"
         super().save(*args, **kwargs)