This paper introduces the application of planet ball milling process to the piezoelectric ceramic frequency device manufacturing process, the role in the adjustment of the piezoelectric ceramic oscillator frequency and the profile chamfering process of the vibrators. The results obtained in the process of ball milling of piezoelectric ceramic vibrators performance under different processing conditions are given .The key factoring effecting on the properties of piezoelectric ceramic vibrators was obtained. Main parameters of piezoelectric ceramic frequency components of the frequency accuracy is higher and higher,by ball milling machining planet mill, realizing the fine adjustment of the element frequency.