Abstract: The production mode of some small and micro enterprises varies greatly with market demand and seasons. However, they do not fully understand the importance of reactive power compensation. Undercompensation on the user side occurs occasionally. In the case of tight power supply, it will seriously affect the quality of power supply. Users will also be assessed for the power factor adjustment charge every month because the power factor does not meet the standard. In order to improve the power supply capacity and quality of the power grid, and reduce the user's operating costs, this paper analyzes the user side reactive power compensation management and adjustment strategy in the case of a user's excessive power regulation charge.