Vehicle noise reduction method and device

The embodiment of the invention provides a vehicle noise reduction method and device, a plurality of noise monitoring points are included in a vehicle, the method comprises the steps that vibration signals of at least one vehicle wheel center are obtained, and the number of the at least one vehicle wheel center is smaller than the number of the noise monitoring points; determining a vibration signal of each noise monitoring point through the vibration signal of the at least one vehicle wheel center based on a pre-established noise transfer function between the vehicle wheel center and the noise monitoring point; if the vibration signal of any noise monitoring point meets a preset condition, determining a noise offset signal matched with the vibration signal of each noise monitoring point; and controlling a loudspeaker in the vehicle to play the noise cancellation signal. According to the technical scheme provided by the embodiment of the invention, the configuration cost generated by carrying out noise reduct