The invention relates to sunglasses and method for identifying the fatigue driving state of a driver, and belongs to the field of traffic safety. The sunglasses comprise a sunglasses subsystem and a vehicle-mounted subsystem, the sunglasses subsystem comprises a 6-axis accelerometer, a Bluetooth module A, a battery module and a wireless charging device A, and the vehicle-mounted subsystem comprises a sunglasses support device, a wireless charging device B, a Bluetooth module B, a GPS module, a microprocessor and a voice alarm device. Whether the driver wears the sunglasses is determined according to data of the 6-axis accelerometer, data in the non-fatigue driving state is learned, whether the vehicle speed is too high and whether early warning against fatigue is necessary are determined according to GPS data, and data of the 6-axis accelerometer is analyzed in real time and compared with that in the non-fatigue driving state to determine whether the driver drives in the fatigue stateand whether to emit an alarm signal. According to the sunglasses and method, the structure is simple, work is reliable, and the problem of fatigue driving of the driver who wears the sunglasses can beovercome.