The present invention relates to a method for producing germinated cereal grains containing a functional natural material which is obtained by adding a natural material to a germinated cereal to add the effective functionality of the natural material to the advantage of the germinated cereal to enable the consumption of the germinated cereal to be further activated, A foreign matter removing step of removing foreign substances contained in the cereals by selecting the cereals several times； A cereal washing step of washing the cereals from which foreign substances have been removed with water； A cereal germinating step in which the cereal is washed and immersed in water after the cereal is washed into the germination tank； A first dehydrating step of taking out the germinated cereals from the germination tank and dehydrating the cereals； The dehydrated germinated cereal is put into a stirring chamber, and water is added to the stirring chamber together with a powder of natural material or a liquid extract to thereby immerse the germinated cereal. In this state, the stirring chamber is sealed and the inside of the stirring chamber A vacuum agitation infiltration step of agitating the germinated cereals to infiltrate an effective ingredient of the natural material into the germinated cereals； A second dehydrating step of removing the germinated cereal from the stirring chamber after dehydration of the natural material is completed and dehydrating the germinated cereal； Drying the germinated cereal after dehydration is completed； .본 발명은 발아곡류에 천연재료를 첨가하여 발아곡류의 이점에 천연재료의 유효한 기능성을 더하여 발아곡류의 소비가 보다 활성화되도록 하는 기능성 천연재료를 함유한 발아곡류 제조 방법에 관한 것으로, 본 제조 방법은 곡류를 여러 차례 선별하여 곡류에 포함된 이물질을 제거하는 이물질 제거 단계와； 이물질이 제거된 상기 곡류를 물로 세척하는 곡류 세척 단계와； 세척된 상기 곡류를 발아조에 투입한 후에 상기 곡류를 물속에 침지시켜 발아시키는 곡류 발아 단계와； 발아된 상기 곡류를 발아조에서 꺼내고 상기 곡류를 탈수시키는 1차 탈수 단계와； 탈수된 상기 발아곡류를 교반챔버에 투입하고, 상기 교반챔버에 천연재료의 분말 또는 액상추출물과 함께 물을 투입하여 상기 발아곡류를 침지시키며, 이 상태에서 상기 교반챔버를 밀폐하고 상기 교반챔버의 내부에 진공을 형성한 후에 상기 발아곡류를 교반하여 상기 천연재료의
