The invention discloses a health food composition for improving immunity. The components in the health food composition influence with each other and are synergistic so that the health food composition has good health efficacy for improving immunity. Black fungus powder is subject to ultrafine grinding treatment and is thus easily absorbed and utilized by a human body; red jujube powder is subject to enzymolysis treatment so that nutritional ingredients, which are difficultly digested and absorbed by the human body, in red jujube peels are subject to enzyme extraction and are easily absorbed by the human body, and the nutritional ingredients of red jujube are favorably and fully utilized. The health food composition disclosed by the invention may further comprise food additives, fruit-vegetable freeze-dried powder or extracts of traditional Chinese medicine; the added fruit-vegetable freeze-dried powder can enable the health food composition to contain abundant nutritional ingredients, and to provide balanced nutrition; the added extracts of traditional Chinese medicine can enable the health food composition to prevent and treat diseases by using the efficacy of the traditional Chinese medicine and meanwhile achieving the effect of improving the immunity.