The invention relates to a three-phase circuit breaker wireless speed measuring device and a use method. The three-phase circuit breaker wireless speed measuring device comprises a speed measuring processor, and further comprises a plurality of circuit breaker position wireless transmitting devices, wireless receiving modules, a wireless transmitting module, a liquid display, an output printing device and a circuit breaker tripping and closing command execution device, wherein the circuit breaker position wireless transmitting devices are sucked on a contact wiring board through magnets; the circuit breaker position wireless transmitting devices communicate with the wireless receiving module; the speed measuring processor is connected with each of the wireless receiving module, the wireless transmitting module, the liquid crystal display and the output printing device; the wireless transmitting module communicates with the circuit breaker tripping and closing command execution device. The three-phase circuit breaker wireless speed measuring device has the advantages that a wireless connection mode is adopted, no complex connecting line is needed, mal-operation can be avoided, the whole structure is simple, high easiness in wiring is achieved, and three-phase circuit breaker tripping and closing speed measuring and synchronism testing can be completed remotely. Qualified testing data can be printed by using the output printing device.