PURPOSE: A method for manufacturing a vegetable starch sheet is provided to obtain a vegetable starch sheet of an eco-friendly material and obtain a cosmetic mask sheet. CONSTITUTION: A method for manufacturing a vegetable starch sheet comprises: a step of mixing vegetable starch, tapioca starch, carrageenan, and mannan and preparing a composition for a sheet； a step of mixing the composition and purified water in a predetermined ratio； a step of heating and gelatinizing the mixture resultant； a step of forming the mixture in a sheet form； and a step of drying the formed mixture. The vegetable starch is isolated from rice, glutinous rice, wheat, buck wheat, corn, oat, barley, soybean, mung bean, red bean, potato, sweet potato, and acorn. [Reference numerals] (AA) Preparing a composition for fabricating sheet, containing vegetable starch, tapioca starch, carrageenan, and mannan(step 100)； (BB) Mixing purified water and composition for fabricating sheet(step 110)； (CC) Heating and gelatinizing the mixture(step 120)； (DD) Pouring gelatinized resultant into a molding frame and forming in sheet form(step 130)； (EE) Drying formed resultant and finishing vegetable starch sheet(step 140)본 발명은 식물성 전분 시트 제조 방법에 관한 것이다. 상기 식물성 전분 시트 제조 방법은 (a) 쌀 전분, 타피오카 전분, 카라기난 및 만난을 혼합하여 시트 제조용 조성물을 제조하는 단계； (b) 상기 시트 제조용 조성물과 정제수를 일정 비율로 혼합하는 단계； (c) 상기 혼합된 결과물을 가열하여 호화(gelatinization)시키는 단계； (d) 상기 호화된 결과물을 성형틀에 부어 시트 형태로 성형하는 단계； (e) 상기 성형된 결과물을 건조하는 단계；를 구비한다.
