The key technology of making human auricular scaffold by using medical silicon was researched. CT scan and reversed modeling were used to obtain the digital auricular model. And the 3D printing technology was utilized to manufacture the mold of auricular scaffold. The medical silicon MED 4735 was used as the material of the scaffold. Animal experiments were then implemented to examine the biocompatibility of the scaffold. The scaffold made by these technologies highly imitates a normal auricle, with high accuracy, short manufacturing cycle, and no immune rejection, which provides the basis for further clinical human experiments.