3D printing system and 3D printing method

75. The invention relates to a 3D printing system and a 3D printing method. The 3D printing system comprises a 3D printer, a control device, an integrated circuit identification label reader and writer and an integrated circuit identification label. The integrated circuit identification label reader and writer is installed on the 3D printer and used for activating the integrated circuit identification label, reading the integrated circuit identification label, and writing in attribute data of 3D printing materials. The integrated circuit identification label is used for storing the attribute data of the 3D printing materials. The control device is used for controlling the integrated circuit identification label reader and writer and carrying out relevant printing work according to the attribute data, read by the integrated circuit identification label reader and writer, of the 3D printing material. According to the 3D printing system and the 3D printing method, the problem that relevant printing work is carried out only after the attributes of the 3D printing materials need to be identified manually in the traditional 3D printing technology is solved, the working efficiency is improved, and user application is facilitated.