The invention relates to a wind power generation device, comprising a body (1), a wind energy receiving assembly (2), a transmission assembly (3), at least one power generation assembly (4), and a wind energy receiving assembly (2) arranged in the body (1). The power generation component (4) is connected to the power generation component (4) through the transmission component (3), wherein the power generation component (4) includes a lever component (41) and a friction power generation component (42) arranged on the lever component (41), and the transmission component (3) A cam (5) is provided, and the cam (5) is in contact with the lever component (41) and drives the lever component (41) to reciprocate, and the friction power generation component (42) generates electric energy during the reciprocating movement of the lever component (41). The wind power generation device of the present invention can efficiently convert the collected wind energy into mechanical energy by using the principles of worm gear meshing, cam transmission and leverage, and then use friction power generation components to generate electric energy, realizing efficient power generation using wind energy.