The invention provides a Chinese patent medicine for treating children with ADHD prepared from Chinese herbal medicines. The present invention uses Rehmannia glutinosa, Radix Paeoniae Alba, Ophiopogon japonicus, Zhimu, Schisandra chinensis, keel, oyster, Codonopsis pilosula, Shichangpu, polygala, and platycodon grandiflora to nourish the liver and kidney, calm the liver and subdue yang, soothe the nerves, stabilize the will, calm the nerves, and nourish the liver and kidney. The effect of mind and intelligence is very good for the treatment of hyperactivity syndrome in children. The invention also provides a preparation method of the medicine.