Carotid artery blockage of 70% is serious and requires aggressive treatment, including interventional therapy, surgical treatment, dietary adjustments, etc. to prevent further aggravation of carotid artery blockage. 1. Interventional therapy: generally refers to stenting, characterized by fast recovery and less trauma. Carotid stenting can be considered for patients who are in poor physical condition, unable to tolerate surgical procedures, and at high risk of general anesthesia. 2. Surgical treatment: If the patient’s general condition is good and can tolerate general anesthesia surgery, carotid endarterectomy can be used. During the operation, the blood vessel is opened, the intravascular plaque is removed, and the blood vessel is sutured. The long-term effect of this method is relatively good. 3. Dietary adjustments: low-salt, low-fat food is the main, should also avoid drinking alcohol. In addition, eat less or not eat animal offal, fat meat, etc., usually eat more vegetables and fruits. Therefore, once the carotid artery is obviously hardened and the lumen is blocked, active intervention should be taken to prevent further aggravation of carotid artery blockage. When the carotid artery blockage 70%, it is recommended that patients should go to the regular hospital in time, under the guidance of physicians standardized treatment.