The invention relates to mixed frozen food of fresh fruits and vegetables and concentrated fruit and vegetable juice and a processing method thereof, belonging to the field of the quick-frozen fresh fruit and vegetable beverage product and the production method thereof. The method comprises the following steps: directly selecting fresh fruits and eatable vegetables collected from pollution-free planting bases as main raw materials, obtaining clean solid materials after cleaning, peeling, seed removal and slitting pretreatment, mixing with such components as concentrated fruit juice and/or concentrated vegetable juice, white granulated sugar, honey, pectin, drinking water and the like according to a proportion, vacuum packaging to form a semi-finished product, and quickly freezing, thereby obtaining the finished quick-frozen fresh fruit and vegetable mixed food which can be stored, transported and sold under low-temperature conditions. The raw materials comprise the following components by weight percentage: 55-77 percent of solid clean materials of fresh fruit or/and eatable vegetables, 7-16 percent of concentrated fruit juice or/and concentrated vegetable juice, 0.2-1 percent of pectin, 2.5-5 percent of white granulated sugar, 0.3-3 percent of honey and 20-30 percent of drinking water. Therefore, the processed product is a novel frozen fruit and vegetable mixed food product with a high solid content.