In view of the situation of widespread scope narrow (only suit to one specification and one test), test equipment cumbersome and basically relying on manual operation, high intensity of labor, and low automatic degree of domestic existing expansion joint fatigue performance test equipment, the design scheme and working principle of a new kind of expansion joint fatigue performance test device which could be used to achieve different diameter and different length’s two expansion joint test at the same time was presented. It was mainly composed of five parts, including test pieces,up and down slide blocks, up and down turntable, driving connecting plate, test load and drive mechanism. Four steering columns were set up evenly around whole device to achieve sliding in the vertical direction of up and down slide block, up and down turntable and driving connecting plate before the test and a spacing device was set to achieve positioning. Four load mechanisms were distributed around the equipment that test beared uniform load. The device accords with requirements of related national regulations and standards, and the automation control system is adopted. It is efficient, intelligent and safe.