In recent years，typhoons have occurred frequently in coastal cities，and the vulnerability of distribution network lines and loads affected by typhoons has been increasing day by day. Therefore，an optimal scheduling model of mobile emergency power supply vehicle based on hierarchical sequence method was proposed. Firstly，the failure rate model under extreme disaster conditions was constructed，and the Monte Carlo method was used to determine the line vulnerability model. At the same time，the synergy of multiple flexible resources such as distributed power sources，energy storage systems and mobile emergency power vehicles under different spatial and temporal scales was considered to formulate a reliable distribution network resilience assessment model combining islanding and reconfiguration. Finally，the original nonlinear problem was convexized into a standard mixed integer second-order cone problem that was easy to solve by the second-order cone relaxation technique. In this study，the hierarchical sequential solution algorithm is used to take the supply rate of important loads as the main goal，while reducing the overall load loss of the distribution network as much as possible as a sub-goal. The effectiveness of the strategy is verified by the example results. Compared with other scheduling methods，the accuracy of the algorithm are further proved.