The invention discloses an equivalent simulation control method for a double-fed fan during the occurrence of a short-circuit fault and belongs to the technical field of electric power systems. According to the control method, on the basis that the external characteristics of the double-fed fan during the occurrence of the short-circuit fault are studied, a PSCAD/EMTDC-based double-fed fan equivalent simulation model is established. In the control method, the fan is equivalent to a controlled current source, and the control system of the fan is respectively formed by a reference circuit system, a fan removal control system, a fault current control system and the like. During the occurrence of the short-circuit fault, the reference circuit system, the fan removal control system and the fault current control system perform a series of cooperative controls to accurately reflect the external characteristics of the double-fed fan during the occurrence of the short-circuit fault. According to the technical scheme of the invention, the high-frequency on-off state of a conventional full-control type power electronic device is not considered at all. Therefore, a larger simulation step size can be adopted, and the simulation efficiency is improved. The method has a certain reference value for the research on the short-circuit faults of large-scale wind power plants.