The invention relates to a traditional Chinese medicine composition for treating sleep disorder. The traditional Chinese medicine composition is a powdery mixture prepared by uniformly mixing the following medicines in parts by dry weight: 0.5-2.5 parts of glossy ganoderma, 0.5-2.5 parts of caulis polygoni multiflori, 0.5-2.5 parts of semen platycladi, 0.5-2.5 parts of cortex albiziae and 1-5 parts of concha margaritifera usta; 0.5-2.5 parts of semen ziziphi spinosae, 0.5-2 parts of schisandra chinensis, 0.5-3 parts of prepared rehmannia root, 0.5-2.5 parts of fructus lycii, 0.5-2.5 parts of radix salviae miltiorrhizae, 0.5-2.5 parts of radix ophiopogonis and the like are added on the basis to form a formula which aims at different degrees of different illness states, and a capsule and a tablet are taken as main parts and taken by using boiled water. The traditional Chinese medicine composition disclosed by the invention has the functions of enriching blood and invigorating qi, tonifying brain, nourishing yin to reduce pathogenic fire, clearing away heat and toxic materials, nourishing the blood and calming nerves, calming liver and suppressing yang, calming nerves and arresting convulsion, clearing away heart-fire and relieving restlessness, moistening lung and clearing internal heat, tonifying Qi and cultivating spirit, nourishing yin and promoting the production of body fluid and can be mainly used for treating hyperactivity of liver yang, distraction, neurasthenia, vexation and sleeplessness, palpitation and insomnia, anxiety and insomnia, Yin blood deficiency, dysphoria and insomnia, palpitation and dreaminess, nighttime sleeplessness and the like. The traditional Chinese medicine composition disclosed by the invention is a pure traditional Chinese medicine preparation, is used for recuperating the cranial nerves and improving the sleep by conditioning the cranial nerves and achieves obvious curative effect.