The present invention provides an use of sugar-soluble material for 3D printing and a 3D printing method using the the same. The 3D printing method comprising the steps of: providing or forming a base layer forming a support structure layer on the base layer with the sugar-soluble printing material forming a cover layer covering the support structure layer to produce a print molded body including the base layer, the support structure layer and the cover layer and soaking the printed molded body in a glucose-containg solution to dissolve the support structure layer, wherein the sugar-soluble printing material comprises a hydrogel, and the hydrogel can be obtained by the reaction of polyethylene glycol diacrylate, dithiothreitol and borax.本發明提供一種可糖溶解的3D列印材料及利用該列印材料之3D列印方法,該方法包括以下步驟:提供或形成一基層;以該可糖溶解的列印材料於該基層上形成一支撐構形層;形成一覆蓋層,將該支撐構形層包覆其中,產生一包括該基層、該支撐構形層與該覆蓋層的列印成型體;將該列印成型體浸泡於糖溶液中,使其中之該支撐構形層溶解,而於該覆蓋層與該基層間形成具有該支撐構形層構形結構之空間;其中,該可糖溶解的列印材料包括水膠,而該水膠可由聚乙二醇二丙烯酸酯、二硫蘇糖醇以及硼砂反應所生成。1‧‧‧列印成型體10‧‧‧基層20‧‧‧支撐構形層21‧‧‧空腔30‧‧‧覆蓋層G‧‧‧葡糖糖溶液
