The strapdown seeker beam stability of phased array radar seekers can be easily affected by the rate gyro and wave control system. To address this problem， this paper proposed an improved angular velocity compensation method for strapdown seeker beam stability. The strategies and principles of the stabilization loop were studied， and an engineering-oriented algorithm derivation was provided. A mathematical platform for strapdown seeker beam stability of phased array radar seekers was constructed to improve performance. Through mathematical simulation， it was verified that this method can effectively eliminate the impact of rate gyro measurement deviation， dynamic lag， transmission delay， as well as execution deviation and transmission delay of the wave control system， thereby effectively improving the performance of strapdown beam stability. The method is also easy to implement in engineering applications.