PURPOSE: A producing method of yacon is provided to minimize inferior goods by producing the yacon in a jelly form, and to obtain a product with high quality and functionality. CONSTITUTION: Yacon is firstly dried to reduce 10% of the moisture content. The firstly dried yacon is washed. The washed yacon is secondly dried for 7-8 days to reduce 5% of the moisture content. The dried yacon is thirdly dried to reduce 20% of the moisture content. The first, second, and third drying processes are conducted in a ventilated house. The yacon is roasted in a bowl heated to 150-300 deg. C, and pulverized to obtain powder. [Reference numerals] (S1) Firstly dry yacon； (S2) Wash yacon； (S3) Secondly dry yacon； (S4) Cut yacon； (S5) Thirdly dry yacon본 발명은 야콘을 가을의 온도조건에서 1차 건조하고, 1차 건조된 야콘을 세척하며, 세척된 야콘의 표피를 건조시키도록 2차 건조하고, 2차건조된 야콘을 분절하여 겨울의 온도조건에서 3차 건조하는 구성으로 야콘을 젤리상태로 제조하여 불량품을 최소화 하면서도 기능성과 고품질의 제품을 얻을 수 있도록 하는 야콘을 이용한 젤리 제조방법에 관한 것이다.
