The invention discloses formula yak milk powder for promoting height increase and brain development of children. The milk powder comprises a plurality of formula components as follows: yak whole-milkpowder, skim milk powder, whey protein powder, soybean oil, white granulated sugar, maltodextrin, fructooligosaccharides, compound minerals and compound vitamins, as well as hydrolyzed egg yolk powder, N-acetylneuraminic acid, taurine, galactooligosaccharide, docosahexaenoic acid, arachidonic acid, milk calcium, choline chloride, nicotinamide, dioscorea opposita extracts, semen coicis extracts, ziziphus jujube extracts, semen ziziphi spinosae extracts, rhizoma polygonate extracts, Poria cocos extracts, fructus alpiniae oxyphyllae extracts, malt extracts, orange peel powder extracts, colla corii asini extracts, rhizoma galangae extracts, cortex cinnamomic extracts, nutmeg extract and desalted whey powder. The milk powder has the effects of promoting overall development of brains and bodies,enhancing immunity, improving memory, protecting eyesight, enhancing gastrointestinal digestion and improving sleep quality of the children.