The invention relates to a cutting device, especially to a high precision cutting device for photo studios. The technique aims to provide is the high precision for cutting device of photo studios. The cutting device adopts the following components to achieve the technical requirements: baseplate, stand, power-driven pusher, sliding rail, the first sliding block, the second sliding block, connecting block, the first connecting rod, wedge block, contact roller, lifting rod, fixed stop, spring, the second connecting rod, cutting table, guide plate and cut-off knife. The baseplate is equipped with stand, the upper inside of left arm of which is installed with power-driven pusher and middle inside of right arm with guide plate. There're guide holes on the guide plate. Sliding rails are provided at the inner top of the stand. The cutting device achieves the cutting device requirements for high precision. The device is simple and efficient but novelty, and convenient for staff in photo studios to operate.