A wind power generator apparatus includes a housing (10) having a chamber (11), a wind generator set (20) in the chamber (11) and a wind collector (30) coupled to the wind generator set (20). The wind generator set (20) includes a base (21) fixed in the housing (10), a generator (22) mounted on the base (21) and a blade wheel (23) coupled to the generator (22). The wind generator set (20) can be installed in a vehicle (50) for generating electric power during driving. The power generated by the wind generator set (20) can be stored or used to charge the vehicle (50).