Abstract:The multi-function controller for missile target is designed and researched which has many functions including electricity modification, interface conversion, target guidance and safety control, against the problems of difficult modifacaion, accuracy shortage aimming at move targets, and weak imitation ability for many targets.The multi-function controller can realize the universal and standardized modification from the retired missile to the multi-purpose target missile and has the characteristics of small workload, high reliability and high flexibility. It can solve the difficult problem in target missile modifacaion and satisfy demand of the air defense weapon system experiment and train.