Abstract: applications and based on rail transit vehicle requirements, the performance of a solid-state hydrogen storage system based on Ti-Mn alloy is investigated. First of all，a transient heat and mass transfer model in the hydrogen storage system was developed，through which the internal temperature changes during hydrogenating process was simulated. Then，the internal pressure and hydrogen flow rate during hydrogenating and dehydrogenating process of a 35kg hydrogen storage system were investigated. Meanwhile， the hydrogenating and dehydrogenating performances of the developed hydrogen storage equipment were verified. Retrieval results demonstrated that the hydrogenating rate slightly decreased but still can maintain high flow rate at the end of filling process. In the dehydrogenating process，the internal pressure maintained stability. The dehydrogenating rate maintained 10kg/h within more than 80% hydrogen capacity, and the outlet pressure maintained more than 0.8MPa. Hence，the outlet hydrogen can be directly applied for fuel cell.