The invention relates to a high voltage ride-through control method for a double-fed fan after considering a power constraint of a converter. When a doubly-fed wind turbine encounters a high voltage of a system, the main control gives control of the wind turbine power to a converter, the controller performs control, and a DC unloading Chopper circuit connected on a DC bus in parallel is input to develop the high-through control; after the high voltage is over, the main control restores control of the wind turbine power. The high voltage ride-through control method solves the problems of DC busvoltage fluctuation and grid side current distortion due to the overvoltage in the transient process, and ensures the safe operation of the wind power system during the fault ride-through.