Atrial fibrillation is one of the most common arrhythmias in adults, mostly in patients with organic heart disease, therefore, those who have had atrial fibrillation must go to the hospital to identify the cause and treat it promptly. As far as possible, atrial fibrillation should be reverted to sinus rhythm after removing the cause, and there are two methods of resetting: drug resetting and synchronous DC resetting. Atrial fibrillation. Life guidance for atrial fibrillation 1, diet: do not eat high-fat, high-cholesterol foods, such as animal offal, animal oil, fatty meat, egg yolk, crabs, roe, etc. Abstain from eating substances that stimulate the heart and blood vessels, such as tobacco, alcohol, strong tea, coffee and spicy condiments. Excessive hunger and satiety will increase the burden on the heart and aggravate the existing arrhythmia. Eat less salt, especially for patients with edema. Consume foods rich in VitB, VitC and calcium and phosphorus to maintain the nutrition and lipid metabolism of the heart muscle. More fresh vegetables and fruits should be consumed to supply vitamins and inorganic salts, and also to prevent dry stools (forceful defecation can increase the chance of thrombus dislodgement). 2, emotion: open-minded, relaxed, calm and stable, excessive tension is particularly likely to induce arrhythmia. It is not advisable to sleep late, not overly excited before bedtime, and slow down the pace of life. 3, fitness: can carry out some relaxing and not to increase the burden on the heart of the whole body activities, such as ballroom dancing, radio exercises, taijiquan, fish, flowers, walking, health exercises, practice qigong, etc.. Adjust life and living with the seasons and climate change to prevent colds from aggravating the disease. Patients with thrombosis should pay attention to prevent sudden and violent coughing to reduce the chance of thrombosis dislodgement. 4.Self-monitoring: Count pulse and heart rate frequently to grasp the changes of the disease. The control standard of ventricular rate in atrial fibrillation is 60-80 times/minute at rest and 90-115 times/minute during exercise. Regularly check the electrocardiogram to clarify the arrhythmia. Patients with atrial fibrillation often have aura (prodromal symptoms), such as palpitations, feel the pulse with “lack of pulse” increased, this should be timely to seek medical attention can be prevented before it happens.