In the process of forging and pressing production, too much stamping pressure will cause unnecessary impact.It will directly affect product quality and equipment life. The improvement of forging accuracy was studied, a set of stamping detection system for press based on piezoelectric sensor was developed.Stamping pressure measurement and 〖JP2〗data verification were repeated through many〖JP〗 experiments.The influence of the press movement mode on the impact characteristics was researched.It has reference for production practice.