Aiming at the problem that the measurment and control system can′t guarantee the antenna attitude stabilization and the pointing realtime alignment at the high dynamic and strong maneuvering complex geographical environment, a strong tracking attitude estimation algorithm with the measurment erro realtime gradient is proposed in this work. The measurement error realtime gradient is used to improve the overshoot problem of tracking filter fading factor caused by the suddern increase, and the multiple fading factor in troduced to ensure that the symmetry filtering prediction covariance matrix is not destroyed, while the strong tracking filter is used to improve the antenna attitude stability under the strong maneuvering conditions and enhance the ability to track mutations. The simulation results show that the proposed algorithm has strong robustness for model parameters mismatching and good tracking ability under the strong maneuvering and high dynamic conditions, and can effectively improve the antenna attitude estimation accuracy in a high dynamic environment.