In order to realize the automatic inspection work of hydraulic valves,an automatic inspection system of multi-station hydraulic valve was designed.It combined the characteristics of modern hydraulic control technology with the integrated combination of hydraulic components such as reversing valve,pressure reducing valve,single lock,safety valve and return liquid breaker,a set of hydraulic inspection system of high/low hydraulic pressure source which could be switched freely was designed.The hydraulic system realized automatic multi-station simultaneous on-line inspection,and was independent to each other.At present,it has been applied,and the system realizes stable and reliable automatic hydraulic inspection.