Abstract: The gate valve is an important functional part of the fuel Transfer system. In order to break the technical blockade and realize the whole localization of the fuel transfer system, the scientific study and manufacture of the gate valve is imperative. According to the objectives, the overall structure design, component function design and material selection are completed, and the performance tests are carried out. The results show that the performance of the gate valve are stable and reliable, and the key technologies of design and material are controllable independently, reaching the international advanced level.