The present invention relates to a mixed grain beverage composition and a method for preparing the same, and more specifically, to a mixed grain beverage composition which is excellent in taste, throat swallowing properties, and drinkability of flavor and others differently from beverages using existing grain powders and has improved palatability, dispersibility, and precipitation stability by mixing whole grain including all of bran, embryo and endosperm, a sweetener, a stabilizer, an emulsifier, and others with a nut paste steamed by performing a jet milling process, thereby preparing a mixed grain beverage composition, and which is excellent in storage stability by performing a sterilizing treatment process at the same time, and a method for preparing the mixed grain beverage composition. A method for preparing a mixed grain beverage composition according to the present invention comprises: a step of grinding and steaming nuts to prepare a nut paste a step of roasting a whole grain, and grinding the roasted whole grain to prepare a whole grain powder a step of preparing a mixed solution comprising the nut paste, the whole grain powder, a sweetener, a stabilizer, an emulsifier, a dietary fiber, perfume, and a liquid medium and a step of performing a sterilizing treatment process on the mixed solution.COPYRIGHT KIPO 2016본 발명은 혼합곡물 음료 조성물 및 이의 제조방법에 관한 것으로, 보다 상세하게는 초미세화 분쇄하여 증숙된 견과 페이스트에 겨, 배아 및 배유를 모두 포함하는 통곡물분말, 감미제, 안정제 및 유화제 등을 혼합하여 혼합곡물 음료 조성물을 제조함으로써, 기존의 곡물분말을 이용한 음료와 달리 식감, 목넘김성, 풍미 등의 음용성이 우수하며, 향상된 기호성, 분산성 및 침전 안정성을 가지는 동시에 멸균 처리함으로써 저장 안정성이 우수한 혼합곡물 음료 조성물 및 이의 제조방법에 관한 것이다.
