3D print technology is the classic representative of material increase manufacturing technology, which has achieved the manufacture process of Addition Process from nonexistence to pass into existence, and pursued "infinite creations" under the concepts of "design equals to production" and "design equals to products". Focusing on product form creativity and function innovation, greatly lowering the cost of product research, development and innovation and shortening the innovation research and development cycle, 3D print manufacturing technology has enhanced technics realization ability, broadened the engineering application field and promoted the green manufacturing pattern.