In order to solve the problem of attack angle accurate simulation and control in the projectile and fuze-warhead system terminal effect rocket sled tests, this paper uses the dynamic numerical method of attack angle of warhead in rocket sled tests, and develops the research for the optimization of rocket sled separation device structure and the design of the separation spatiotemporal position. The study achieves undisturbed separation between warhead and rocket sled and the index requirement of the attack angle control deviation which is no greater than ±0.5°. The research can be used in precise and efficient warhead rocket sled test to attack angle design and control, and it provides a certain reference and technical support for the related technology research.