The difficulties of hydraulic valve fatigue and high pressure test are high pressure,to provide high frequency hydraulic pulse,as well as higher requirements for energy saving and reliability.A new type of hydraulic valve fatigue and high pressure test stand was designed and developed.The main work was hydraulic system design,electrical and data acquisition system hardware and software design.The test stand was mainly used for the fatigue and high pressure test of the multi valve cavity of construction machinery.The system has the advantages of stability,reliability,energy saving,simple and convenient operation and so on.