The invention provides a method for restraining electromagnetic transient simulation virtual power consumption of a controllable power electronic device. The method comprises the following steps: establishing a network equation containing the controllable power electronic device; defining the pulse triggering time tz of the controllable power electronic device, obtaining a current source I injected by a system during network re-calculation at the tz; obtaining the network node voltage at the pulse triggering time through the I; performing iterative integration of simulation step size, and returning interpolation to standard step size. Through the adoption of the method, the virtual power loss caused by the pulse triggering action of the controllable power electronic device is effectively avoided, and the simulating capability of the controllable power electronic device is improved.