Abstract: The present application provides a shared energy storage scheduling method and system based on energy frequency regulation and load demand. The method includes: establishing an objective function of a shared energy storage system participating in cooperative scheduling of energy frequency regulation and load demand; inputting relevant parameters of a grid side, a user side and the shared energy storage system into the objective function; solving the objective function according to an objective function constraint condition and a switching cost of a load importance degree and in combination with a mixed integer linear programming algorithm, to obtain a shared energy storage configuration scheme; configuring the shared energy storage system according to the shared energy storage configuration scheme, and controlling the shared energy storage system to participate in energy cooperative scheduling of the grid side and the user side according to a hierarchical control strategy of the shared energy storage system.