The invention discloses ugine sport nutrition milk tea powder and a preparation method thereof and belongs to the technical fields of solid drinks, modified milk powder and nutritious foods. The milk tea powder is characterized by comprising whole milk powder, skim milk powder, whey protein powder, collagen powder, soy peptides powder, maize oligopeptide, inulin, maltodextrin, soluble soybean polysaccharide, instant tea powder, phospholipid, L-carnitine, a vitamin premix and a mineral premix. The milk tea powder disclosed by the invention has the advantages of giving a full play to the effects of nutrition complementation and cooperative gain, filling a market vacancy and integrating the functions of supplementing calcium, strengthening bones, losing the weight, relieving fatigues, keeping fit and the like; the milk tea powder is good in taste, convenient to eat, good in safety, strong in acceptability, free of toxic or side effects, simple in production process and easy to product and has a great market development potential.