After stenting LDL cholesterol control below 1.8mmol/L. LDL is an important risk factor for the development of coronary heart disease. Reasonable control of LDL level can not only slow down the progression of coronary atherosclerosis, but may even reverse the lesions. According to the existing guidelines, patients who have undergone stent implantation belong to the group with very high risk of dyslipidemia, and the LDL level should be strictly limited to less than 1.8 mmol/L. Therefore, after the procedure, the LDL level should be lowered to less than 1.8 mmol/L. Therefore, after surgery, patients should strengthen lipid-lowering treatment, pay attention to maintaining good diet and lifestyle habits, and also use statins such as atorvastatin and ezetimibe under the guidance of the doctor, and follow the doctor’s instructions to do a good job of reviewing the situation. It is recommended to have regular postoperative checkups, and to consult the doctor if there is any discomfort.