The invention provides an exercise type fermented dairy product and a preparation method. According to a formula of the exercise type fermented dairy product, the exercise type fermented dairy productis prepared from the raw materials: 70-95 parts of raw milk, 5-15 parts of glucose, 2-10 parts of soy protein, 2-20 parts of casein, 2-10 parts of whey protein, 5-15 parts of oat, 5-15 parts of yam rhizome, 10-20 parts of bulbus lilii, 5-20 parts of purple sweet potato, 1-5 parts of dandelion polysaccharide, 1-10 parts of malto-oligosaccharide, 0.2-2 parts of vitamins, 0.0001-1 part of lactobacillus germanica bulgarian subspecies JMCC0018, 0.0001-1 part of streptococcus thermophilus JMCC0019, 0.0001-1 part of lactobacillus plantarum N3117 and 0.0001-1 part of lactobacillus paracasei N1115. The fermented dairy product contains multiple kinds of functional components, for the usual phenomena of exercise induced fatigue, damage, body dysfunction, decrease in immunity and the like of a humanbody in middle and late periods of exercise, nutrition is supplemented, and the exercise fermented dairy product has important significance; the exercise type fermented dairy product is suitable for any post-exercise people.