Abstract: With the development of dairy raising towards large-scale and standardized direction，breed of calf is gradually paid more attention. Demand of intelligent system of calves is emerging increasingly.Characteristics of automatic feeding of calves were summarized.Basic structure and working principle of intelligent automatic calf feeding system with raw material supply from two lines were introduced.And characteristics of several typical foreign intelligent calf feeding system were analyzed.It provided reference for the research and development of similar products in our country.