Abstract: 3D printing is an emerging technology in the field of manufacturing industry,which is known as the manufacturing technology with the significance of industrial revolution. In order to enable students to fully understand this advanced technology as soon as possible and to cultivate their innovative and practical ability,this paper focuses on training students majoring in mechanical engineering,and discusses the teaching equipments,teaching contents and teaching organization. It has established a complete engineering integrated training teaching method taking students as the main body,from 3D model design to 3D printing manufacturing,and achieved good results in practice teaching.