Tenoning and assembly of rack shaping machine is one effective method of vertical wood spreading; the method can improve the utility ratio of wood, reduce the waste of wood. Sheet materials assembled after tenon-making and spreading are with little deformation in later period processing and their performance is superior to common sheet materials. While technology of rack shaping machine is spread and used in many areas in our country, rack shaping machine is also spread in many areas in our country. Rack shaping machine produced by our company integrated with foreign and Taiwan advanced technology has the features of compact structure, reasonable layout and high precision, and the machine is a good equipment for Rack shaping.