The present invention relates to a health supplement food which maintains or enhances active ingredients of yacon leaves; resolves specific sour and bitter tastes of the yacon leaves; contains active ingredients of the yacon leaves to facilitate a thorough transfer of antidiabetic active components to a small intestine by preventing the active ingredients of the yacon leaves from being degraded in a stomach by digestive enzymes; and is manufactured in a granular form and encapsulated, and to a manufacturing method thereof. [Reference numerals] (AA) Step of washing yacon leaves; (BB) Step of drying the yacon leaves by light waves; (CC) Step of firstly crushing the yacon leaves; (DD) Step of mixing yacon leaves powder, hemp powder, and aronia; (EE) Step of secondly crushing the mixture; (FF) Step of manufacturing the mixture in a granular type; (GG) Step of encapsulating the granular mixture본 발명은 야콘 경엽의 유효성분을 유지 또는 증진 시키면서 야콘 경엽의 특유한 떫고 쓴맛을 해결하고, 야콘 경엽의 유효성분이 위에서 소화효소에 의해 분해되는 것을 방지하여 항 당뇨에 관한 유효성분이 소장까지 잘 전달 될 수 있도록 야콘 경엽의 유효성분을 함유하며, 과립 형태로 제조하여 캡슐화된 것을 특징으로 하는 건강보조식품 및 그의 제조방법에 관한 것이다.