Jilin province is the important base of grain production in China,and maize production is the mainstay industry of agriculture in Jilin province.Facing with the new situa-tion,especially after China has joined WTO,maize industry in Jilin province will meet the huge challenge and must be adjusted to adapt to market change in the future.To meet the demand for adjusting the structure of agriculture production in Jilin province,alfalfa industry should be developed correspondingly.According to the natural condition,favourable geographical position,and profit analysis of planting alfalfa in Jilin province,the author thinks that Jilin province is one of the most potential region in the developing alfalfa industry in China.