The invention discloses a multiscale flexibility verification target of a vehicle-mounted pavement crackle detecting system based on active vision, and aims to solve the problem existing in the test of the illumination influence of the vehicle-mounted pavement crackle detecting system based on the active vision. The system comprises a No.1 target (1), a No.2 target (2), a No.3 target (3), a No.4 target (4) and a base (5), wherein the lower surface of the base (5) is put on flat ground, the No.1 target (1), the No.2 target (2), the No.3 target (3), and the No.4 target (4) are in fixed and threaded connection with four threaded holes processed in the upper surface of the base (5). The system provides the multiscale flexibility verification target of the vehicle-mounted pavement crackle detecting system based on active vision, which is small in space usage, simple in structure, high in detection precision, simple and convenient to operate, easy to mount, low in cost and reliable in performance.