Abstract: This paper describes the status and gap of milk production of Jilin Province and proposes the vision to expand the production of alfalfa for dairy development. It is discussed that the advantages of alfalfa development of Jilin Province contain the climate, land and technical support. A large amount of data is used to clarify the feeding value of alfalfa. It is proved that cows fed alfalfa has a high economic efficiency based on the existing research results, so it is worthy to be popularized and applied in production.