diff --git a/src/3rd_app/move2grasp/scripts/grasp_d435.py b/src/3rd_app/move2grasp/scripts/grasp_d435.py
index f60b255..3dcabbb 100755
--- a/src/3rd_app/move2grasp/scripts/grasp_d435.py
+++ b/src/3rd_app/move2grasp/scripts/grasp_d435.py
@@ -163,8 +163,8 @@ class GraspObject():
         cv_image2 = cv2.cvtColor(cv_image1, cv2.COLOR_BGR2HSV)
 
         # 蓝色物体颜色检测范围
-        LowerBlue = np.array([95, 90, 100])
-        UpperBlue = np.array([130, 210, 255])
+        LowerBlue = np.array([100, 100, 140])
+        UpperBlue = np.array([140, 255, 255])
         # LowerBlue = np.array([4, 103, 162])
         # UpperBlue = np.array([85, 136, 181])
         mask = cv2.inRange(cv_image2, LowerBlue, UpperBlue)