The invention provides high-energy nutrient solution type convenience food, which is prepared with the following raw materials in parts by weight: 20-40 parts of whole milk powder, 5-20 parts of defatted milk powder, 5-30 parts of maltodextrin, 2-15 parts of vegetable oil, 0.5-3 part(s) of phospholipids, 0.5-3 part(s) of glyceryl caprylate-caprate, 0.06-0.3 part of L-carnitine and 0.1-0.5 part of food flavor. In addition, 5-20 parts of defatted milk powder and 2-10 parts of sodium caseinate by weight can be added into the raw materials. The invention has the advantages of high energy, comprehensive nutrition (with capsules of vitamins and trace elements), long shelf life (four years or so), easy carrying, convenient eating and the like.