The invention relates to minor cereal confected rice which is jointly cooked with rice and a processing method of the minor cereal confected rice. The minor cereal confected rice meets nutritional requirements on 'Chinese dietary guide' and is prepared based on a formula obtained by linearly planning demand on cereal energy caused by a human body. Raw materials in the formula are several of sorghum, foxtail millet, buckwheat, oat, barley, black rice, broom corn millet, glutinous broom corn and coix seed and are pretreated. The processing method of the minor cereal confected rice comprises the following steps: firstly screening minor cereals, removing impurities, soaking or atomizing and modifying the minor cereals, draining off, carrying out microwave puffing, carrying out hot-air drying, cooling, and carrying out mixed loading. The minor cereal confected rice has the advantages that the nutrients of refined grains and minor cereals are supplemented each other, and daily energy demand of a consumer is met; meanwhile, the minor cereals are processed by utilizing a microwave puffing technology, the original nutritional ingredients of food are maintained to the utmost extent, the processing time is short, and puffing, drying and sterilizing techniques can be completed at the same time; besides, rice and the minor cereals can be jointly cooked, and a complex operation that the minor cereals need to be cooked firstly and then rice is added and cooked with the minor cereals when people want to eat minor cereal rice at present is eliminated, so that the minor cereal confected rice is convenient and practical.