The invention relates to a high-precision and high-efficiency automatic 
cutting mechanism, which includes a first 
conveyor belt and a 
cutting device. The input end of the first 
conveyor belt is provided with a material box fixed on the ground through a column, a mounting frame, a lifting piece and a driving piece.  The bottom of the material box is provided with a first opening and a plurality of first blocking rods, an 
adhesive plate and a first locking 
assembly are arranged on the mounting frame, a first 
adhesive layer is provided on the upper surface of the 
adhesive plate;  There is a platform, a second locking 
assembly, a first separation device, a waste bin, a second separation device and a collection bin.  During the 
processing of the shoe upper, the pasting board pastes the fabrics in the material box, and then the first 
conveyor belt will transport the pasting board to the 
cutting device.  After the material cutting is completed, the pasting board will be transported to the platform, the first separation device will make the waste fall into the waste box, and the second separation device will make the upper fall into the collection box.  The invention improves the 
processing efficiency and cutting precision of the vamp.