diff --git a/post_pro/merge_obj.py b/post_pro/merge_obj.py
index 45c21e8..89c68ca 100644
--- a/post_pro/merge_obj.py
+++ b/post_pro/merge_obj.py
@@ -292,6 +292,17 @@ class MergeObj:
 
     def merge_grid_obj(self, grid_points: Dict[tuple, pd.DataFrame], translations: Dict[tuple, tuple]):
         """合并所有网格的OBJ模型"""
+        if len(grid_points) == 1:
+            grid_id = list(grid_points.keys())[0]
+            shutil.copytree(os.path.join(self.output_dir,
+                                         f"grid_{grid_id[0]}_{grid_id[1]}",
+                                         "project",
+                                         "odm_texturing"),
+                            os.path.join(self.output_dir, "texturing"))
+            os.rename(os.path.join(self.output_dir, "texturing", "odm_textured_model_geo.obj"),
+                      os.path.join(self.output_dir, "texturing", "textured_model.obj"))
+            return
+
         try:
             # 创建输出目录
             output_model_dir = os.path.join(self.output_dir, "texturing")