Abstract: Auto-feeding technology for dairy cattles was very popularly applied in advanced countres such as ones in Europe,North America,and previous Soviet Union.But it is in near nothingness in China up to now .So it is very important and urgent to study and develop the auto-feeding technology for dairy cattles. Based on the analysis of the development and present status of foreign and domestic auto-feeding equipments, and the research and development of the auto-feeding equipments for dairy cattle were carried out. The function and the general design thought of the system, the systematic structure of hardware and software and anti-jamming design were also stated in this paper. Finally, the technological characteristics and application foreground on auto-feeding equipment were summarized.Each auto-feeding machine of this system can feed 10-30 dairy cattles at one time,and each bus unit can service 640-192 。dairy cattles,which is very suitable for large scale dairy cattle breeding factories.