The invention discloses an examination device for a vehicle-mounted road surface crack detection system based on a six-bar posture-varying road surface, and aims to solve the problem of an examinationresult of road surface cracks on different relative positions by adopting the vehicle-mounted road surface crack detection system. The examination device for the vehicle-mounted road surface crack detection system based on the six-bar posture-varying road surface mainly consists of a crack platform (1), upper threaded rods (2), threaded connecting pieces (3), lower threaded rods (4), hinged bases(5) and a base (6). The system provides the examination device for the vehicle-mounted road surface crack detection system based on the six-bar posture-varying road surface which has the advantages of variable depth of the cracks, simpleness in a structure of the device, reliable performance, simpleness and convenience in operation and mounting and lower cost.