The experiment schemes were designed to test the noise and vibration of the electronic water pump and the noise and vibration signals of the electronic water pump were recorded by the data acquisition system under different working conditions.The test results show that the radial noise of the electronic water pump is obviously greater than the axial noise;the noise of domestic electronic water pump is significantly higher than that of imported electronic water pump;in the acceleration process of electronic water pump, speed fluctuation is the main cause of vibration and noise mutation of electronic water pumps.According to the analysis of the noise order diagram of the electronic water pump, it is found that the electronic water pump generates structural resonance noise at 4 500 Hz frequency band;under high speed conditions, hydrodynamic noise contributes a large to the electronic water pump noise;under medium and low speed conditions, electromagnetic noise contributes a large to the electronic water pump noise;pulse width modulation is the main reason for the electromagnetic noise of the electronic water pump.Based on the existing designs and control approaches of electronic water pumps, some improvement suggestions were put forward to provide experimental data and research direction for vibration and noise reduction of electronic water pumps.