The invention relates to the technical field of shoe tree manufacturing technologies, in particular to a shoe tree 3D printing manufacturing method. The method comprises the following steps that 1, acomputer drawing of a shoe tree is manufactured as required; 2, data information of the obtained computer drawing is input into a 3D printer, and shoe tree 3D printing is conducted; and 3, after printing is completed, a printed shoe tree is subjected to surface treatment, and a finished shoe tree product is obtained, wherein the shoe tree 3D printing method adopts the laser scanning ultraviolet curing mode. According to the shoe tree 3D printing manufacturing method, the 3D printing technology is directly adopted for shoe tree manufacturing, the machining speed is high, modification is convenient, and if an error occurs, the size and parameter of the output drawing can be directly modified in a computer; and in addition, compared with an existing technology method, through the shoe tree 3Dprinting manufacturing method, the production efficiency can be greatly improved, the labor intensity of staff can be relieved, and material wasting and pollution in the production process are reduced.