diff --git a/jikimo_purchase_tier_validation/models/models.py b/jikimo_purchase_tier_validation/models/models.py
index 39e41e1f..085f3b06 100644
--- a/jikimo_purchase_tier_validation/models/models.py
+++ b/jikimo_purchase_tier_validation/models/models.py
@@ -87,15 +87,14 @@ class jikimo_purchase_tier_validation(models.Model):
 
     def _validate_tier(self, tiers=False):
         res = super(jikimo_purchase_tier_validation, self)._validate_tier(tiers)
-        tier_reviews = tiers or self.review_ids
 
         # 检查是否所有审批都已通过
         all_approved = all(
             tier_review.status == 'approved'
-            for tier_review in tier_reviews
+            for tier_review in self.review_ids
         )
 
-        if all_approved and tier_reviews:  # 确保有审批记录
+        if self.review_ids and all_approved:  # 确保有审批记录
             self.state = 'approved'
 
         return res