Fiber destruction machine has 22pcs of vertical cutting knife that assembled at right and left sides. The function is completely destroyed direct veneer fiber. It will be softer and more flat after destroyed then dried. In the normal thickness, the moisture of veneer will be more uniform and can be dried faster. Each left and right has 8 sets of spiked wheel which can extend length of veneer and make it softer. The complete set of vertical knife and spiked wheel has excellent effect, and can make green veneer more flat and softer.