The invention discloses a health-care food for relieving physical fatigue and a preparation method thereof. The health-care food consists of astragalus mongholicus, medlar, epimedium herb, malaytea scurfpea fruit and American ginseng, and is prepared by the following steps of: extracting the astragalus mongholicus and the medlar and preparing powder; extracting the epimedium herb and the malayteascurfpea fruit and preparing powder; preparing American ginseng powder; blending, mixing and granulating; metering and filling capsules; and packaging. A product prepared by the process is safe to betaken, has an obvious health-care effect and is low in industrial production cost.