The invention discloses a wind power generation controller. The wind power generation controller is provided with an input port, a direct current output port and a storage battery connecting port, the input port is connected with a power generator, the direct current output port is connected with a load, and the storage battery connecting port is connected with a storage battery. The wind power generation controller comprises a main circuit and a control circuit, wherein the main circuit comprises a rectifying circuit, a fore-stage boosting conversion circuit, a voltage stabilizing circuit, a post-stage boosting conversion circuit and a charging switch, the charging switch is connected with a diode in parallel, the voltage stabilizing circuit is used for absorbing a negative pulse which is released by pulse charging of the storage battery, and maintaining the stable voltage of the direct current output port, the charging switch is used for providing a charging passage for a positive pulse, the control circuit comprises a processor, the processor is used for receiving an input signal obtained by the main circuit, and generating and outputting the control signal to the main circuit, the processor is used for changing the duty cycle of a pulse width modulation signal of the fore-stage boosting conversion circuit so as to change the output current, the output power of the power generator is detected to track the maximum power point, and the processor is used for changing the current size of the negative pulse according to the duty ratio of a pulse width modulation signal of the post-stage boosting conversion circuit.