The invention discloses blue honeysuckle fruit and blueberry compound juice capable of assisting in improving the human body immunity. The blue honeysuckle fruit and blueberry compound juice comprises the following components, in parts by weight, 80-82 parts of blueberry fruits, 84-86 parts of blue honeysuckle fruits, 12-13 parts of tartaric acid, 10-12 parts of water soluble chitosan, 9-10 parts of trehalose, 11-12 parts of xylitol, 12-13 parts of bamboo leaf flavonoid, 4-5 parts of zinc gluconate and 7-8 parts of iron gluconate. According to the blue honeysuckle fruit and blueberry compound juice capable of assisting in improving the human body immunity, the juice is prepared by matching the blueberry fruits with the blue honeysuckle fruits, the nutrition is rich, and the effects of enhancing the organism immunity, improving the liver function, resisting tumors, reducing blood fat, clearing heat and purging fire, resisting inflammations and viruses and the like are achieved; a nutrient enrichment effect is achieved by adopting the trehalose, the xylitol, the bamboo leaf flavonoid, the zinc gluconate and the iron gluconate; and meanwhile, anthocyanins in the blueberry fruits are matched with a large number of natural red pigments in the blue honeysuckle fruits, so that the compound juice has good color and luster.