diff --git a/suites/test-linux/scripts/overlay.py b/suites/test-linux/scripts/overlay.py
index fc4e6c9..ff102e3 100644
--- a/suites/test-linux/scripts/overlay.py
+++ b/suites/test-linux/scripts/overlay.py
@@ -30,8 +30,10 @@ def main():
         sys.exit(1)
 
     # 确保坐标系一致
-    target_crs = province.crs or "EPSG:4326"
-    province = province.to_crs(target_crs)
+    source_crs = province.crs or "EPSG:4326"
+    # 使用投影坐标系（墨卡托）计算中心点以避免 geographic CRS 警告
+    projected_crs = "EPSG:3857"
+    province_proj = province.to_crs(projected_crs)
 
     # 查找所有城市 SHP
     city_shp_files = glob.glob(os.path.join(cities_dir, "*.shp"))
@@ -54,14 +56,14 @@ def main():
                             "reason": "数据为空", "status": "跳过"})
             continue
 
-        city = city.to_crs(target_crs)
+        city = city.to_crs(projected_crs)
 
-        # 空间判断：城市中心点是否在省界内
+        # 空间判断：城市中心点是否在省界内（使用投影坐标系避免 CRS 警告）
         city_centroid = city.geometry.centroid.iloc[0]
-        in_province = province.geometry.contains(city_centroid).any()
+        in_province = province_proj.geometry.contains(city_centroid).any()
 
         # 也检查 intersect 作为辅助判断
-        intersects = province.geometry.intersects(city.geometry).any()
+        intersects = province_proj.geometry.intersects(city.geometry).any()
 
         status = "通过 ✅" if in_province else "不通过 ❌"