Abstract: Power electronics dominated and multi-voltage are the two basic characteristics of DC power distribution in the future. How to achieve precise control and decentralized control is an urgent problem in the field of DC power distribution control. Aiming at the status of multi-operation state, multi-power electronic equipment and multi-control mode of DC power distribution system, a finite state machine matrix is established to describe the multiple states and mutual switching process of the system. At the same time, the system is based on the coordinated control strategy of each converter to achieve smooth switching and precise control. The proposed method uses the current state and triggering condition as the controller input variable and the new state and coordinated control strategy as output variables to establish a mathematical model. Finally, the correctness and effectiveness of the proposed method are verified by simulation analysis.