The present invention relates to a producing method of soy sauce and, more specifically, to a producing method of soy sauce which uses soy sauce using a Cudrania tricuspidata extract, a fermented solution obtained by fermenting Cudrania tricuspidata berries, and beef. A product produced by using the method has more reinforced storability and flavor is nutritionally excellent.본 발명은 간장의 제조방법에 관한 것으로, 더욱 상세하게는 꾸지뽕 추출액을 이용한 간장과 꾸지뽕 열매를 발효시킨 발효액과 소고기를 이용한 천리장(千里醬)의 제조방법을 개시한다.
