The invention discloses a wind power generation variable propeller driver and method and relates to the cross field of a power electronic technology and a wind power generation technology. The wind power generation variable propeller driver disclosed by the invention comprises a control unit and a power driving unit, wherein the control unit receives propeller motor operational orders initiated by a master control end, initiates variable propeller control orders according to the propeller motor operational orders and the actual operation states of a propeller motor, and also initiates full feathering control orders according to the configuration information of the wind power generation variable propeller driver, which is set by users, when the fault of the wind power generation variable propeller driver is detected; and the power driving unit controls the propeller motor to perform variable propeller operation according to the variable propeller control orders initiated by the controlunit, controls the propeller motor to perform full feathering operation according to the full feathering control orders initiated by the control unit, acquires the signals of actual operation states of the propeller motor, and sends the signals to the control unit. The internal integrated PLC (programmable logic controller) function provided by the embodiment of the invention is convenient for the users to debug.