Abstract: For problems of long test cycle, low efficiency and unable to realize automatic test in durability test of manual reversing valve of hydraulic support, an automation device for durability test of manual reversing valve of hydraulic support was designed. The device is based on reciprocating movement of hydraulic cylinder, and uses push-pull special tool of the manual reversing valve handle to drive handle of the manual reversing valve to swing from left to right to achieve purpose of automatic reversing. At the same time, software of measurement and control system is used to control actions of starting, reversing, collecting pressure, judging and counting of the device, so as to realize automatic test of durability test of the manual reversing valve. The practical application results show that the device has characteristics of simple structure, adjustable loading speed and high test efficiency, and durability test cycle is shortened from 165.6 h to 31.2 h.