The invention relates to a multi-freedom-degree adjustable image acquisition device. Five sets of same moving execution mechanisms are distributed on a supporting platform of the multi-freedom-degree adjustable image acquisition device; the center line of each moving execution mechanism passes through the center point of the supporting platform, and a plurality of included angles are formed by the center lines and the horizontal direction; each moving execution mechanism consists of guide rails, sliding blocks, a moving platform, a screw rod and a servo motor; each rotary execution mechanism consists of a slewing drive, a posture adjusting platform and a servo motor. According to the multi-freedom-degree adjustable image acquisition device disclosed by the invention, the multi-freedom-degree execution mechanisms are applied to the field of vision acquisition, so that the multi-freedom-degree adjustable image acquisition device of which the intelligent degree is high is formed; under the effect of the moving execution mechanisms and the rotary execution mechanisms, the position and the posture of each digital camera and the position and the posture of each laser light source can be independently adjusted according to the shape of a measured article and vehicle disturbance, so that a plurality of technical difficult problems caused during applying a conventional machine vision technology in a highway are solved.