diff --git a/Controller/config/components/devices/COARM/COARM-M3 b/Controller/config/components/devices/COARM/COARM-M3
index 71430f1988cb4e11df29d018638c531c91977cb9..661c6817a665aeceef698624c4a875895e77828c 100644
--- a/Controller/config/components/devices/COARM/COARM-M3
+++ b/Controller/config/components/devices/COARM/COARM-M3
@@ -18,7 +18,7 @@ motion_complete_limit   = 0.02
 motion_complete_ratio   = 1.5
 control_error_time      = 3
 
-mounting_direction      = 1
+mounting_direction      = -1
 mechanical_stop         = 0
 mechanical_offset       = 0
 
diff --git a/README.md b/README.md
index 47ca7b23924b523d2e23a0af6e7f6b0548ea52d2..6cab060649684109ea978177fd46af025ddb37d0 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,9 @@ Coarm机械臂底层运动控制库
 
 ## 更新说明
 
+### Update v1.0.8
+1. 更改实物关节转动方向
+
 ### Update v1.0.7
 1. 电机控制部分：删除motor下多余模块导入，修改代码细节
 2. 逆运动学部分：修改运动学参数偏移到关节config下，修改初始化参数到init，删除coarm模块