The application of silicone tube in hydrogen fuel cell stack is of great significance in hydrogen fuel cell system. The silicone tube is mainly used for the cooling water pipe of the reactor, which plays the role of connecting, sealing and diverting the flow to ensure the normal operation of the entire system. Secondly, it also plays a sealing role and helps maintain the compression force to ensure the normal operation of components such as the gas diffusion layer. Optimizing the compaction force is one of the key focuses to balance porosity and contact resistance while taking into account factors such as aging and thickness changes of the sealing material to ensure the stability and performance of the stack