Static actuation characterization of the piezoelectric stack was theoretically analysis first for the design of piezoelectric stack, based on which other research work including the testing method research of the dynamic actuation characterization,the structure model analysis on the piezoelectric stack were performed.All the research work built a good foundation for the application of piezoelectric stack in the micro vibration active control system.At last,a large displacement piezoelectric stack was designed and manufactured. The theory calculation and experiment test results matched the design expectation well.It was applied in some micro vibration control system, and got a good effect in control.