The invention provides an expansion joint test device, which relates to the technical field of urban rail transit. The expansion joint test device comprises a driving mechanism, a working platform, apressure sensor, a digital-display pull-push dynamometer and a control panel; the working platform is used for carrying the expansion joint test device; an output end of the driving mechanism is usedfor being connected with an expansion joint by virtue of the pressure sensor and drives the expansion joint to make reciprocating pulling movement; the digital-display pull-push dynamometer is electrically connected with the pressure sensor and used for displaying initial sliding force of the expansion joint; and the control panel is electrically connected with the driving mechanism and used for setting a pulling times of the expansion joint and obtaining anti-fatigue strength of the expansion joint according to the pulling times of the expansion joint. The expansion joint test device solves the technical problems of the prior art that the initial power and the anti-fatigue strength of the expansion joint cannot be simultaneously measured.