diff --git a/app/service/design_fast/pipeline/segmentation.py b/app/service/design_fast/pipeline/segmentation.py
index 3884a48..8447514 100644
--- a/app/service/design_fast/pipeline/segmentation.py
+++ b/app/service/design_fast/pipeline/segmentation.py
@@ -36,7 +36,8 @@ class Segmentation:
             # 本地查询seg 缓存是否存在
             _, seg_result = self.load_seg_result(result["image_id"])
             result['seg_result'] = seg_result
-            if not _:
+            # 判断缓存和实际图片size是否相同
+            if not _ or result["image"].shape[:2] != seg_result.shape:
                 # 推理获得seg 结果
                 seg_result = get_seg_result(result["image_id"], result['image'])[0]
                 self.save_seg_result(seg_result, result['image_id'])