diff --git a/post_pro/merge_tif.py b/post_pro/merge_tif.py
index c8393e0..dc2f48f 100644
--- a/post_pro/merge_tif.py
+++ b/post_pro/merge_tif.py
@@ -127,13 +127,14 @@ class MergeTif:
                 # 如果文件大于600MB，则不使用original文件
                 file_size_mb = os.path.getsize(
                     grid_tif) / (1024 * 1024)  # 转换为MB
+                file_name = file_name.replace(".original", "")
                 if file_size_mb > 600:
                     grid_tif = os.path.join(
                         self.output_dir,
                         f"grid_{grid_id[0]}_{grid_id[1]}",
                         "project",
                         product_path,
-                        "odm_orthophoto.tif"
+                        file_name
                     )
 
                 if input_tif1 is None: