Nowadays, the dairy industry has gradually developed into large-scale production from the traditional mode. With expanding farming scale, construction of dairy farms in high temperature and high humidity areas is becoming increasingly important. The infrastructure conditions directly affect the milk quality and economical benefit of breeding and reproduction of cows. This paper analyzes the design of dairy farms based on site selection, building construction, ventilation, cooling and epidemic prevention, aiming to alleviate, to some extent, the negative impact on cow breeding of high temperature and high humidity so as to improve the breeding benefit.