Abstract: In order to study the problem of motion attitude of high-speed flying projectiles, a rotating mirror synchronization tracking technique is proposed. A rotating mirror is placed in the direction of the main optical axis of the high speed CCD camera. The motion of the projectile in the ballistic line is reflected to the high speed CCD camera to achieve synchronous tracking. A rotating mirror tracking system based on the midpoint of the field of view of the high-speed CCD camera is designed. In the system, the motion model of projectiles and rotating mirrors is set up, and the curves of time varying with the MATLAB software are obtained. When the parameters are H=300 m and V=100 m/s, the errors existing in the system are analyzed. The results show that the system can achieve synchronous tracking of high-speed projectiles.