The invention discloses a DC micro grid bus voltage control strategy based on hybrid energy storage. By use of high power density of a super capacitor and a high-energy-density feature of a storage battery, according to a voltage change rate of DC bus voltages, the bus voltages are processed segment by segment under different voltage conditions, the DC bus voltage stability is improved through two different energy storage control strategies, variation of the DC bus voltages can be inhibited, the satiability of the DC micro grid bus voltages is ensured, and the application prospect is good.