The invention discloses a power generation cost constraint-based multi-domain scheduling method considering an energy storage power system and belongs to the technical field of power system scheduling. By utilizing the scheduling characteristic of a transferable load of the energy storage system, an important role of flexible scheduling can be played in the actual scheduling of the power system. The multi-domain scheduling method is provided from the perspective of flexible scheduling of source storage, influence of factors such as load, wind power output random fluctuation and system regulation capability is comprehensively considered, and all regulation capacities in the system are uniformly scheduled and redistributed into three control domains, namely a normal domain taking complete wind power consumption as a target, an abnormal domain needing to call an energy storage system to consume wind power, and an emergency domain without regulation capability and forced wind curtailment.Under different domains, through reasonable matching of a conventional thermal power generating unit and an energy storage system, multi-domain economic dispatching is achieved with maximum clean energy consumption as the target.