The present invention relates to an asparagus tuber fermented sap liquid and a manufacturing method thereof, and more specifically, to an asparagus tuber fermented sap liquid and a manufacturing method thereof. According to the present invention, the method comprises the steps of: mixing an asparagus tuber fermented liquid, which is made by filtering and aging a sugar-fermented product manufactured by sugar-fermenting the asparagus tuber, and an asparagus tuber extract, which is made by heating and amplifying a sugar-fermented product, which is an intermediate product of a manufacturing process of the asparagus tuber fermented liquid and aging and boiling down the mixture, thereby maximally preventing a loss of an active ingredient included in the asparagus tuber and improving the flavor of the fermented sap liquid.COPYRIGHT KIPO 2015본 발명은 천문동발효진액 및 그 제조방법에 관한 것으로, 보다 구체적으로는 천문동을 당발효시켜서 제조한 당발효물을 여과 및 숙성시켜서 제조한 천문동발효액과, 천문동발효액 제조과정의 중간 산물인 당발효물을 가열증폭 처리하여 추출한 천문동추출액을 혼합하여 숙성시키고 조려서 제조함으로써, 천문동에 포함되어 있는 유효성분의 손실은 최대한 방지하면서도 발효진액의 풍미가 증진된 천문동발효진액 및 그 제조방법에 관한 것이다.