The invention provides a medicated diet for conditioning the specific endowment constitution and a preparation method thereof. The medicated diet comprises Chinese jujube, radix astragali preparata, red ginseng, fried atractylodes macrocephala, rhizoma atractylodis, Chinese yam, cassia twig, saposhnikovia divaricata, fructus psoraleae, ganoderma lucidum, radix puerariae, purple perilla, herba schizonepetae, radix rehmanniae preparata, radix paeoniae alba, Chinese angelica, ligusticum wallichii, fingered citron, rhizoma cyperi, platycodon grandiflorum, radix aucklandiae, fructus aurantii, the fruit of Chinese wolfberry, prepared radix polygoni multiflori, eucommia ulmoides, glossy privet fruit, polygonatum kingianum, semen euryales, deer horn glue, tortoise shell glue, fried coix seeds, honeysuckle, cortex moutan, radix achyranthis bidentatae, poria cocos, rhizoma alismatis, fresh ginger, fructus cannabis, brown granulated sugar and starch syrup. The product adopts natural food materials, edible and medicinal substances, and substances capable of being used as heal food as the main raw materials, has the effects of invigorating spleen-stomach, replenishing qi, strengthening spleen, tonifying lung, supporting yang, consolidating defensive qi, dispelling wind to relieve exogenous syndrome, regulating qi, replenishing blood, nourishing liver and kidney, nourishing and suppressing yang, clearing heat, removing toxicity and the like, and has good effect on conditioning of the specific endowment constitution and improvement of the immune adjustment.