The invention provides full-nutrition formula food, specific full-nutrition formula food or non-full-nutrition formula food suitable for the aged. The full-nutrition formula food is developed based on physical characteristics of the aged, according to the requirement of General Principles of Special Medical-Purpose Formula Food, by integrating research achievements of advanced physiology, medicine, nutriology, clinical application and the like of Harvard University at present and according to the traditional Chinese medicine essence theory of eliminating while replenishing and balancing and regulating (with a main principle of simultaneously regulating liver, spleen and kidney). The full-nutrition formula food is prepared by mixing main raw materials and auxiliary materials, wherein the main raw materials comprise a variety of edible and medicinal traditional Chinese medicine extract essences, a variety of probiotics and oligopeptide; the auxiliary materials comprise probiotics, carbohydrates, amino acids and a variety of vitamins and mineral substances. The full-nutrition formula food can be used as a single nutrition source for meeting the nutrition requirements of the aged and also has the functions of warming the kidney, strengthening yang, tonifying deficiency, reinforcing qi, nourishing blood, tonifying kidney, securing essence, dispersing blood stasis, descending the turbid, restoring yang and relieving desertion, warming and activating meridian, building body, prolonging life and enhancing immunity.