Our invention provides a functional rice enriched with γ-Aminobutyric Acid (GABA), includes the first fermented matrix, and the second unfermented matrix. The first matrix is provided by a source fermented by probiotics containing GABA, a fermented matrix enriched GABA by using rice, beans, and cereal fermented by probiotics. Our product-functional rice enriched with GABA is mixed the fermented matrix with unfermented beans or cereal. The mixture of functional rice would not affect the color, flavor, luster, and taste, and consumers can uptake more GABA when having meal.本發明提供一種含γ-胺基丁酸的機能性米,包含一種經發酵的第一基質,及一種未經發酵的第二基質,其中,該第一基質是將一基體經由益生菌發酵後而得,利用益生菌將米類或豆類或雜糧類進行發酵而得到富含γ-胺基丁酸的發酵基質,並進一步將該發酵基質與一般未經發酵的豆類或榖物類等直接摻混即可得到含γ-胺基丁酸的機能性米,該機能性米不影響原米飯的香味、色澤及口感,可讓消費者在吃飯的同時即攝取到更多的γ-胺基丁酸。