Designing a small nuclear reactor by yourself is an extremely complex and highly dangerous task, involving many cutting-edge technologies, strict safety regulations and regulatory requirements, and there are huge safety risks. It is not recommended for non-professional scientific research institutions and strictly authorized units to try, so we cannot provide you with relevant specific innovations. Nuclear reactor design is related to national security, public health and environmental safety. It must be carried out by a professional team with deep professional knowledge, rich experience and strict qualifications and licenses in accordance with a series of international and domestic regulatory standards. Privately designing a nuclear reactor may not only cause serious nuclear safety accidents, but also lead to serious consequences such as illegal proliferation of nuclear materials.