Atrial fibrillation belongs to the category of palpitations in the internal medicine of Chinese medicine, and different treatment principles and prescriptions should be selected according to different clinical typologies. 1. Heart Qi deficiency type, in which heart Qi deficiency is manifested by dizziness and weakness along with heart panic, and palpitations are obvious after activity, should be treated clinically by nourishing heart Qi, and can be reduced with Wu Wei Zi Tang, which mainly includes ginseng, astragalus, licorice, Wu Wei Zi and maitong. 2, 2. Heart yin deficiency type, manifesting as heart trouble, insomnia, dry mouth, five heartburn or night sweating at the same time as heart panic, should be treated by nourishing heart yin to calm the mind, using Tian Wang Tonic Heart Dan or Zhu Sha An Shen Wan to add or subtract. 3. Heart and spleen deficiency type, manifesting as dizziness, dazzling, less color, abdominal distension and poor appetite at the same time as heart panic, should be treated by strengthening the spleen and nourishing the heart to nourish qi and blood, using Gui Shen Tang to add or subtract. 4. The treatment should nourish the liver and kidney to nourish the heart and tranquilize the mind, and can be reduced by using Consistent Decoction and Sour Date Soup. 5. In the treatment of palpitations, the heart should be nourished with qi to calm the heart and tranquilize the mind, which can be treated by adding or subtracting Ping Tiao Zhen Xin Dan. 7. The treatment should be to activate blood circulation and resolve blood stasis, using Blood Mansions and Blood Stasis Tang to add or subtract drugs including peach kernel, angelica, raw earth, safflower and Chuanxiong. Prevention of atrial fibrillation and its complications requires a combination of Western medicine.