The invention discloses a vehicular wind power generation assembly of an electric vehicle, and belongs to the field of power generation. By the aid of the vehicular wind power generation assembly, widespread technical problems that energy stored in storage batteries of existing electric vehicles is insufficient, the existing electric vehicles cannot run over long distances, the storage batteries cannot be timely charged and the like can be solved. The optimal method for solving the technical problems includes that a power generation assembly capable of meeting self power consumption requirements is mounted on an electric vehicle, and the vehicular wind power generation assembly of the electric vehicle can meet the requirement. A working principle of the vehicular wind power generation assembly includes that wind force generated when the electric vehicle runs is utilized, and a wind wheel is blown by the wind force to rotate, so that a power generator can be driven to generate power, a power source can be provided or supplemented for the electric vehicle, and the vehicular wind power generation assembly can be mounted on a chassis or at another suitable position of the vehicle. The vehicular wind power generation assembly has the advantages that the vehicular wind power generation assembly is unaffected by optional environments, the power source can be timely provided or supplemented for the electric vehicle, and power consumption requirements of the electric vehicle can be met to the greatest extent.