Abstract: 3D bio-printing technology is a new technology method that uses computer three-dimensional model as"drawing"to assemble special"bio-ink"and finally manufacture artificial organs and biomedical products.The application of 3D printing technology in the field of biomedicine has been rapidly developed in recent years with good development prospects and great social value.In this paper,the applications of 3D bio-printing in tissue engineering and organ reconstruction were reviewed.

Key words: 3D printing, Tissue engineering, Organ reconstruct