The invention discloses an automobile wheel rim appearance arcuate path visual reconstruction system. The system comprises a gear (1), a motor (2), a clamp (3), a laser demarcation device (4) and an arcuate rail (5). A round hole in the gear (1) passes through an output shaft of the motor (2) and is in key joint with a stepped shaft intermediate section of the motor (2). A nut is in fixed threaded connection with the end part of the output shaft of the motor (2). The gear (1) is placed in the arcuate rail (5) and is engaged with an arcuate rack of the arcuate rail (5). The laser demarcation device (4) is placed between two threaded holes in the top of the motor (2). Two bolts run into round holes on both sides of the clamp (3) and two threaded holes in the top of the motor (2) to be in fixed threaded connection with the motor (2). The system provided by the invention has the advantages of small footprint, simple structure, high detection precision, easy operation and easy installation.