The invention belongs to the field of power generation and discloses a vehicle-mounted forcible wind power generation device of an electromobile in order to solve the technical problems that generally, the current electromobiles have the defects that energy of storage batteries is not sufficient, and the electromobiles cannot run for a long distance and cannot be charged in time. To best solve the technical problems, a small wind power generator needs to be installed on the electromobile to provide or supplement electricity for the electromobile, and thus the electricity using requirement is met. The vehicle-mounted forcible wind power generation device of the electromobile is designed by taking the method into consideration. According to the working principle of the vehicle-mounted forcible wind power generation device of the electromobile, wind power generated by an air blower is utilized to blow a wind wheel at the front end of a rotor of the power generator to rotate so that the rotor of the power generator can be driven to rotate, wind energy generated by the air blower is converted into mechanical energy for driving the rotor of the power generator to rotate so that the power generator can generate electricity, and thus the purpose of providing or supplementing electricity for the electromobile is achieved.