An intelligent control strategy for DC microgrid interconnection converters is presented to estimate the direction and magnitude of power flow according to the DC bus voltage. In this strategy, the interconnection converter is utilized as the Microgrid Power Flow Controller (MPFC) to control the power flow on the interconnected lines between two DC microgrids. Then a microgrid self-adaptive droop control method is proposed to ensure MPCF and distributed energy storage to control DC bus voltage cooperatively. Finally, simulation results are presented in the Matlab/Simulink to verify the effectiveness of the proposed method, which can improve the stability and power utilization of the system and reduce the power loss caused by the redundant power transmission and the charge-discharge times of energy storage. This work is supported by National Natural Science Foundation of China (No. 51677016).