In view of the difficulties in controlling the manual pressurization process of hydraulic pressure test of pressure equipment and the errors in judging the eligibility of hydraulic pressure test by direct observation of pressure gauge with naked eyes,a design scheme of automatic control device for hydraulic pressure test of pressure equipment was proposed,and the device structure and control system were realized.The structure design of the automatic control device included the work table structure design,pressure pipeline design,pressure relief pipeline design and other protection design; the PLC,frequency converter and proportional valve were used as the hardware core,the control of hydraulic test process was realized by combining with fuzzy PID controller; the human-computer interaction of hydraulic test equipment was realized; the performance test of the automatic control device for the hydraulic test was carried out.The results show that by using the device,the whole process control and qualification determination of the hydraulic test can be better realized,and the device has the functions of video recording and real-time saving of the test data,and the hydraulic test process can be traced.