Abstract: Echo simulation is the foundation of system demonstration and algorithm research. The traditional echo simulation focuses on the methods of modeling the missile and the jamming signal independently, lacking system-level simulation. This paper presents a micro-motion ballistic object radar echo simulation method. Based on a manual scenario-definition platform, this method generates high-fidelity radar echo of ballistic objects, where ballistic trajectory model, wobbling model and the jamming model are integrated. This method can also be connected with target radar cross section data and jaming smapling data from dark room or real data, providing an important data platform for detection and recognition of warhead in complex electromagnetic environment.