To design a component-based radar simulation platform, one need to extract the mathematical model according to the working principle of radar, divide the radar system according to the function, build the completed model according to the principle, and build the system according to the logical relationship between modules. The component-based design of each functional module enables the realization of radar design simulation with different system and index requirements. The platform has the advantages of fast development cycle and low development cost, which is of great value to the development of radar system.