The invention discloses a traditional Chinese medicine health care food for relieving physical fatigue and a preparation method thereof. The health care food is prepared by five pure traditional Chinese medicine raw materials including flatstem milkvetch seed, semen cuscutae, herba epimedii, rhizoma polygonati and American ginseng. The raw materials are as follows in parts by weight: 20-50 parts of flatstem milkvetch seed, 20-40 parts of semen cuscutae, 5-20 parts of herba epimedii, 5-20 parts of rhizoma polygonati and 1-6 parts of American ginseng. The raw materials are orderly treated by preparation methods such as pretreatment, alcohol extraction, water extraction, thick paste mixing, spray-drying, crushing, mixing, filling, polishing, packing and the like so as to obtain an oral capsule preparation. The traditional Chinese medicine health care food disclosed by the invention has reasonable components and balanced effect, plays an overall regulation advantage and regulates the function of each visceral organ in the whole body, so the traditional Chinese medicine health care food is a good pure traditional Chinese medicine health care food that is helpful to relieve physical fatigue, also causes no untoward effects, has high safety even being taken for a long time, and causes no dependency. The preparation method related to the invention is simple, low in cost and capable of realizing industrial production.