In 2016，the global market size of 3D printing kept expanding. Industrial giants successively adopted 3D printing technology on a large scale to manufacture products. IT enterprise HP also tried actively to construct an ecosystem for 3D printing based on crossover deployment. Commercial modes were emerging gradually represented by 3D printed innovation centers and service factories. In the following years，3D printing industry will keep growing rapidly. The focus of product development will gradually shift from the printer to overall solutions. Meanwhile，new manufacturing modes will constantly boost the 3D printing technology.