The invention provides a method for realizing working condition switching simulation of a water pump and a water turbine and a double-fed motor of a pumped storage power station. This method is divided into three parts: the simulation realization of water turbine working condition transition process, the simulation realization of water pump working condition transition process and the simulation realization of the switching process between water turbine working condition and water pump working condition. The simulation of the transition process of power station operating mode switching. Through the block simulation modeling of each part, the simulation of the transition process of working condition switching of pumped storage power station is realized by integrating and encapsulating timelogic elements. The method considers the influence of the whole transition process on the power of the power grid during the working condition switching of the pumped storage power station running atthe grid-connected operation. Through the block simulation modeling of each operation mode of pumped storage power station, the method realizes the simulation of the complete transition process of thepumped storage power station starting from one working condition and running to the full load operation to the disconnection and shutdown, and then starting from the other working condition and running to the full load operation to the disconnection and shutdown; By modeling and simulation, a new idea is provided for the simulation and application of the double-fed variable-speed pumped storageunit in the power system which is of great significance to study the compensation range and the compensation speed of the power fluctuation of the power grid in the pumped storage power station.