Abstract: The realization of radar stealth for all kinds of electric apertures and the corresponding designs of low scattering carrier are very concerned in the current engineering field. However, there has been a lack of systematic and universal method. This paper summarizes the background and development trend of related work, and then analyzes the basic electromagnetic scattering mechanisms and high-precision and high-efficiency simulation methods used in the design of low scattering carriers. Facing the general technical requirements, the overall design logic and detailed partition design process are deeply studied, and the specific operation steps based on specific software are also given out. Through example design and result analysis, the scientificity and effectiveness of the design method are demonstrated, and the future research space is also discussed.