Abstract: Aimed at large inertia，high speed，high precision servo control requirement of launch device，a study on servo control technology based on partitioning PID and feedforward compensation algorithm is given. The technique adopts partitioning PID control algorithm，and import feedforward compensation algorithm to processing composite control，which aimed at dynamic tracking requirement of launcher device. The technique improves the dynamic and static tracking property of launcher device，which determines the satisfactory control effect.

Key words: Partitioning PID, Feedforward compensation, Servo control, Launcher device