Energy storage system is an important part of micro-grid, and ensuring the storage state of charge (SOC) of energy storage system is the key to the safe and efficient operation of energy storage system and even the whole micro-grid. A storage SOC coordinated control of AC/DC hybrid microgrid interface converter based on virtual synchronous generator (VSG) control is designed, which can improve the frequency and power stability of hybrid microgrid and the rationality of each storage SOC in the system. Firstly, the droop control mode of distributed power supply on both sides of AC-DC microgrid and subnet characteristics are analyzed. Based on this characteristic, a VSG control strategy applied to interface converter is proposed to improve the frequency and power stability of the system. In the power sharing control block, the SOC control strategy of the energy storage system is added to control the interface converter to actively exchange power between subnets in order to optimize the SOC state of each storage system. Finally, an AC/DC hybrid microgrid model is built in Matlab/Simulink to verify the effectiveness of the proposed algorithm.