The invention relates to a BMD (bone mineral density)-increased health food composite and a preparation method of the BMD-increased health food composite. The BMD-increased health food composite comprises 180-220 parts by weight of red deer bone, 120-160 parts by weight of D-glucosamine hydrochloride, 80-100 parts by weight of chondroitin sulfate, 25-45 parts by weight of achyranthes root extractive, 20-40 parts by weight of drynaria rhizome extractive, 15-35 parts by weight of herba epimedii extractive, 10-20 parts by weight of casein phosphopeptides, and clinically-acceptable auxiliary materials, so that the hard capsule, the troche, the granule, the powder, the tea bag agent and the soft capsule can be prepared. According to the invention, a calcium source can be compensated by the red deer bone, the symptom of the osteoarthropathy can be improved by the D-glucosamine hydrochloride and the chondroitin sulfate, the calcium absorption can be promoted by the casein phosphopeptides, and the functions of nourishing the liver and kidney and strengthening the bones and muscles can be achieved due to the compatibility of traditional Chinese medicines. The BMD can be effectively increased due to the joint compatibility of the raw materials; a finished product is simple in preparation technology; and the health food provided by the invention is exact in effects, safe, and free of toxic and side effects, and can be taken for a long term, so that the general flavone in every 100g in the content of effect ingredients of the health food composite is higher than 0.5g.