The invention discloses a coplanarity visual detection system for an automobile wheel position finder lifting frame and aims to solve the problem of non-contact detection of coplanarity of the automobile wheel position finder lifting frame. The coplanarity visual detection system for the automobile wheel position finder lifting frame mainly comprises panels (1), hemispherical identifiers (2), a camera stand (4), a camera (5) and a camera supporting seat (6). The system acquires images of the spherical identifiers through a camera, can calibrate the camera and reestablish the position of a spherical center according to the shape of a quadratic curve of spherical projection, and further evaluates the coplanarity error of the automobile wheel position finder lifting frame. The coplanarity visual detection system for the automobile wheel position finder lifting frame is simple in structure, high in detection accuracy, simple and convenient to operate, easy to mount, lower in cost and reliable in performance.