It is still not mature enough as it is difficult to achieve both accuracy and processing speed by traditional filter tracking method, so the MIMO system could not meet the demand when directly used for target shooting system for high-speed and multi-target for automatic aiming and shooting system. Therefore, a method of self-adaptive filter based on g-h-k was proposed for MIMO radar in tracking and ai– ming. In view of multi-target change acceleration, the main principle is as follows: firstly, model the gain of location, velocity and acceleration, then propose and solve the jerk filtering equation, lastly, dynamically adjust the angle variable parameters to achieve a minimized tracking error. Practice shows that, for high maneuvering targets, the method can solve contradiction between accuracy and convergence rate for MIMO radar system well.