The invention discloses a verification device for a breaker synchronous control device of an extra-high pressure station. The verification device comprises a measurement control device, a synchronous/asynchronous switching selection switch, a relay protection three-phase tester, the breaker synchronous control device, a fault recorder, a low-resistance breaker and a secondary circuit. The invention further provides a verification method of the verification device. According to the verification device and the verification method, an experimental model is established at the scene and a corresponding operation method is executed, so that the debugging and acceptance inspection of the breaker synchronous control device are completed, and the difficulty of debugging and acceptance-inspecting the breaker synchronous control device at the scene is effectively solved.