GPS application in spacecraft’s high dynamic navigation is presented in the paper. the impact on GPS signal acquired and tracked by spacecrafts under high dynamic circumstances is analyzed. FFT fast acquisition algorithm and FLL and PLL mixing carrier waves tracking plan are presented, and the designs of code and carrier wave rings’ structures and parameters are introduced. Simulation and analysis results show that signals can be fast acquired by spacecrafts under the high dynamic circumstances and meet the dynamic performance and tracking accuracy of receivers.