In order to promote the better and faster development of dairy industry in China, the problem of cow breeding should be solved fundamentally. This paper took the invention patents of dairy cattle breeding as the research object,through data mining and visualization processing of the invention patents provided by the patent database of the State Intellectual Property Office, the patent application trend and layout overview in the field of breeding and genetic improvement of the dairy cattle were completed. In the process of proving the technical development routes of important applicants at home and abroad, it also provided valuable technical information for domestic breeders.