PURPOSE: A fermented liquid, and a producing method thereof are provided to use purified water, bay salt, sugar, green tea powder, black bean powder, rice bran powder, tangerine skin powder, and other ingredients to economically obtain the liquid.CONSTITUTION: A producing method of a fermented liquid comprises the following steps: preparing 24-26wt% of water purified from bedrock the 200 meters underground preparing 20-22wt% of liquid bacillus inserting 24-26wt% of purified water, 8-10wt% of bay salt, 15-17wt% of sugar, 5-7wt% of green tea powder, 6-8wt% of black bean powder, 8-10wt% of rice bran powder, 8-10wt% of tangerine skin powder, 6-8wt% of ecklonia cava powder, and the 20-22wt% of liquid bacillus into a stirring container stirring the mixture with a stick for 2 hours 30 minutes-3 hours and sealing the stirring container, and settling the mixture for 10-20 days at 20-40 deg C.COPYRIGHT KIPO 2012본 발명은 정제수, 천일염, 설탕, 녹차 분말, 검은콩 분말, 쌀겨 분말, 하귤진피 분말, 감태 분말, 액상의 바실러스균을 이용하여 발효 원액을 간단한 공정과 적은 비용으로 많은 발효 원액을 용이하게 제조할 수 있도록 한 발효 원액 및 그 제조방법에 관한 것으로, 이러한 본 발명은 24중량% ~ 26중량% 정제수, 8중량% ~ 10중량% 천일염, 15중량% ~ 17중량% 설탕, 5중량% ~ 7중량% 녹차 분말, 6중량% ~ 8중량% 검은콩 분말, 8중량% ~ 10중량% 쌀겨 분말, 8중량% ~ 10중량% 하귤진피 분말, 6중량% ~ 8중량% 감태 분말, 20중량% ~ 22중량% 액상의 바실러스균인 것을 특징으로 한다.