Abstract: In order to ensure the health of dairy cows,it is very important to prevent epidemic disease in scale dairy farms because of the rapid change of the way of dairy cows raising from free-range to large-scale and intensive.Any cow disease prevention and control need to take all-round measures,but the first thing to do is disinfection.Although disinfection is very important to the prevention and control of infectious diseases,many dairy farms pay little attention.Based on the importance of disinfection,this paper puts forward the disinfection measures and attention points for scale dairy farms.

Key words: scale dairy farms, disinfection, importance