The researches of composition of the milk re-ceived from goats of local zaanensky breed were carried out on the zoofarm of Institute of Applied Biotechnology and Veterinary Medicine where lac-tating goat are kept, and also in physiological la-boratory of Chair of Internal Noncontagious Dis-eases, Obstetrics and Physiology of Farm Animals. Feeding goats of local zaanensky breed was car-ried out according to consumption rates of forages on the maintenance of lactating goat to stall period. It included the following types of forages in struc-ture of a diet of feeding of goats: hay (cereal to grasses), carrots, cabbage and oats. For receiving cisternal portion of milk lactating goat was put in special machine. The udder was washed with warm water and wiped with dry towel. The tip of the nip-ple was disinfected with the solution of Furacilin and into the canal of the nipple entered the sterile catheter greased with sterile vaseline through which in the substituted glass vessel cisternal por-tion of milk followed, measured its quantity. Further the catheter was taken out from the nipple, the ud-der was washed with warm water and dry wiped a towel and massaged. The mass fraction of protein in serum of milk of goats of local zaanensky breed was determined by refractometric method by IRF-464 refractometer. The mass fraction of fat of goat milk was investigated by means method of Gerber acid in accordance with State Standards 5867-90 (1990). Dry rest was determined by the standard method of evaporation in a drying oven, ash by in- cineration in a muffle furnace. The quantity of mass fraction of the protein in the milk of crossbred goats Saanen was 3.6±0.11 %, fat content determined in the milk obtained from goats and averaged to 6±0.01, the amount of solids in the milk of crossbred goats Saanen according to our data contained 17.3±0.33, water 83.7±0.41, ash 1±0.05 %.