Light distribution detection machine for car light of motor vehicle

The utility model discloses a plane movement type light distribution detection machine for car lights of motor vehicles, which comprises a bottom rail. Two ends of the bottom rail are provided with a vertical bar, a bidirectional oil cylinder is arranged between the vertical bar, a lateral movement mechanism is connected with the bidirectional oil cylinder via a connecting block, a servo motor and a leading screw controlled by the servo motor are arranged on the lateral movement mechanism, a longitudinal movement mechanism is arranged on the leading screw via a nut, and an illuminometer is arranged on the longitudinal movement mechanism. With simple and practical structure, the light distribution detection machine for car lights of motor vehicles improves detection precision, increases detection scope, simplifies detection means and method, and reduces equipment cost.