Abstract: Aiming at the control problem of the energy router of the DC power distribution network, the response speed of the internal DC bus is improved through the integrated control method of the port energy, so as to improve the transient performance of the DC power router. Based on a four-port DC power router with dual active bridge conversion units, the energy flow of the ports is analyzed, the port energy model of the power router is established, and an integrated controller is designed based on the port energy relationship to comprehensively control the energy between units at all levels, the influence of the parameter differences of the passive components in the system on the comprehensive control is analyzed, a comprehensive control strategy is designed for the grid-connected operation of the DC power router, and the stability of the DC bus voltage is improved. Finally, the control strategy is simulated based on Matlab/Simulink, and the simulation results verify the effectiveness of the integrated control strategy. At the same time, the simulation results show that the control strategy proposed is conducive to reduce the capacitance value of low-voltage bus.