The invention discloses a traditional Chinese medicine composition for treating ADHD (Attention Deficit Hyperactivity Disorder) and a preparation method of the traditional Chinese medicine composition. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 60 to 120 parts of radix pseudostellariae, 50 to 150 parts of poria cocos, 50 to 150 parts of rhizoma atractylodis macrocephalae, 50 to 150 parts of radix paeoniae alba, 50 to 150 parts of uncaria tomentosa, 10 to 40 parts of scorpio, 20 to 80 parts of pericarpium citri reticulatae, 15 to 75 parts of rhizoma pinellinae praeparata, 50 to 150 parts of hawthorn, 10 to 40 parts of radix glycyrrhizae preparata and 70 to 130 parts of endothelium corneum gigeriae galli. The preparation method of the traditional Chinese medicine composition comprises the steps of a, extracting rhizoma atractylodis macrocephalae and pericarpium citri reticulatae volatile oil; b, preparing dry extract powder of hawthorn and radix glycyrrhizae preparata; c, preparing sediment of radix pseudostellariae and poria cocos; d, preparing dry extract powder of radix paeoniae alba, uncaria tomentosa, scorpio and rhizoma pinellinae praeparata; e, preparing endothelium corneum gigeriae galli powder; f, preparing a volatile oil and beta-cyclodextrin inclusion compound; g, granulating by mixing active dry extract powder, the sediment and the endothelium corneum gigeriae galli powder with sucrose powder and dextrin. The traditional Chinese medicine composition for treating ADHD, disclosed by the invention, is simpler in preparation technology and has the advantages that the treating effect is remarkable, the dosage is small, the side effects are small, and the like; meanwhile, the medicine dosage can be greatly reduced, the traditional Chinese medicine composition is more suitable for a child to take, and the cost is preiswert.