The invention discloses a traditional Chinese medicinal composition for treating infantile anorexia and a preparation method for the traditional Chinese medicinal composition. The traditional Chinese medicinal composition for treating infantile anorexia is refined from the following raw materials: bupleuri radix, ginseng radix et rhizoma, zingiberis rhizoma praeparatum, euodiae fructus, plantaginis semen, dendrobii caulis, hordei fructus germinatus, crataegi fructus, lycii fructus, atractylodis rhizoma, atractylodis macrocephalae rhizoma, galli gigerii endothelium corneum, wrinkled gianthyssop herb, coptidis rhizoma, ostreae concha, raphani semen, tsaoko fructus, aucklandiae radix and myristicae semen. According to the traditional Chinese medicinal composition for treating infantile anorexia, various raw materials are matched and reasonably compounded to form a scientific formula, each raw material has complementary advantages, and synergistically acts or resists to improve the curative effect and achieve the effects of promoting digestion and purgation, invigorating spleen, replenishing qi, relieving stagnation, loosening the center, warming the middle and harmonizing qi, the disease resistance of an organism can be enhanced, remarkable curative effects on infantile anorexia are achieved, the traditional Chinese medicinal composition is quick in response, non-irritating, low in side effect rate, safe and reliable, and has a stable long-term curative effect, and symptoms of anorexia can be radically improved.