PURPOSE: A manufacturing method of a health food using germinated brown rice is provided to offer health food easy to eat with good taste and containing gamma aminobutyric acid and other nutrient components for helping anti-aging, detoxification, anticancer activity, and immunity enhancement. CONSTITUTION: A re-fermented culture fluid is manufactured by the following steps: re-fermenting a culture fluid with fermented plum extract at a temperature of 36 to 38°;C for 24 to 48 hours; adding 10 to 15 parts powdered malts, 2 to 3 parts pollens, 2 to 3 parts powdered sea buckthorn leaves to 100 parts by weight of the re-fermented culture fluid. A compound powder is manufactured by mixing 100 parts by weight of germinated brown rice, 20 to 30 parts corn, and 20 to 30 parts rice bran. A health food is manufactured by mixing the 100 parts by weight of compound powder with 40 to 60 parts by weight of the re-fermented culture fluid before fermentation for 96 to 120 hours. [Reference numerals] (AA) Start; (BB) End; (S101) Culture fluid activation step; (S101-1) Compound powder manufacturing step; (S103) Nutrient component adding step; (S105) Compound fermenting step본 발명은 발아현미를 이용한 건강식품의 제조방법에 관한 것으로, 더욱 상세하게는 매실발효액기스가 함유된 배양액을 재발효하는 배양액활성화단계, 상기 배양액활성화단계를 거친 배양액에 엿기름, 화분 및 비타민나무 잎 분말을 첨가하는 영양성분첨가단계, 발아현미, 옥수수 및 미강을 혼합하여 혼합분말을 제조하는 혼합분말제조단계, 상기 영양성분첨가단계를 통해 제조된 배양액과 상기 혼합분말제조단계를 통해 제조된 혼합분말을 반죽하여 발효시키는 혼합물발효단계로 이루어진다.