In view of the limitation of traditional grid management mode in charging energy storage system during the period of low time-of-use electricity price, a dynamic power management strategy for island military camp energy storage based on mixed integer programming is proposed. A mixed integer linear programming (MILP) model is constructed, and a two-stage approach is used to define the time-varying function of power constraints, which coordinates the control operation of household energy storage while considering the constraints of power grid. The verification based on real island distribution network data, the dynamic adaptive power management strategy can effectively improve the economic benefits of the energy storage system, and enhance the toughness and reliability of the island power grid. The results show that this strategy allows charging to be increased in the low price period, and power supply to the grid in the high price period, so as to achieve electricity saving and grid balance, which is of great significance for the improvement of energy self-sufficiency in remote areas such as island military camps.