Through the research of the way of passive non-contact detection methods of static electricity, and according to its own unique advantages, put forwards the applications of passive non-contact detection methods of static electricity in nearly burst detonator function of air defense weapon. And through the theoretical analysis and simulation experiments, we can come to the conclusion that the passive non-contact detection method of static electricity in a composite electrostatic detonator realization nears the feasibility of fried is feasible. The application of detecting technology can make the projectile exploded in the best stopping point, realize the maximum projectile damage and effectively increase the target of air defense weapon to destroyed fighters probability.