The utility model relates to an integrated test bench of a transformer. The integrated test bench comprises a test bench body, a CPU (Central Processing Unit), a keyboard, a liquid crystal display, an on-off control circuit and a test wiring switching circuit and further comprises a bushing tap grounding terminal, a wireless communication module, a remote controller, an LED (Light-Emitting Diode) display and an LED alarm lamp screen. The integrated test bench has the following advantages: (1) the leading-out terminal of a transformer winding can be automatically switched to a corresponding test instrument according to an experimental project, wiring at an equipment side and an instrument side is not needed to be changed, less people are needed for test, the test time is short, and the operation is safe; and (2) test projects such as tests on the winding insulation resistance, winding dielectric loss, winding direct-current resistance, low-voltage short-circuit impedance, on-load switch recording, winding transformation ratio and sleeve of the transformer can be completed through once wiring.