Abstract: In view of the problem that the qualified rate of wave spring was low due to unstable load value, the comparison and comprehensive analysis was made from raw material, thickness and height of the waveform spring. The results show that the main factor affecting the qualified rate of waveform spring is the inhomogeneity of waveform spring thickness. According to the thickness, the waveform spring is classified, and the waveform spring with different thickness is loaded into the tempering tool with different waveform height to control the height of the waveform spring and improve the qualified rate of the waveform spring.