Garlic has a certain effect on lowering blood lipids, but the effect is limited. Garlic needs to be eaten raw to have a lipid-lowering effect, and raw garlic is more stimulating to the gastrointestinal tract, so patients with stomach problems should not eat raw garlic. Patients with high blood lipid level should not rely on garlic alone to reduce blood lipid level, but also improve lifestyle and diet, such as low salt and low fat diet, increase physical exercise, control body weight, keep body mass index below 24Kg/㎡, quit smoking, limit alcohol, maintain a good state of mind, avoid staying up late and emotional excitement, and apply lipid-lowering drugs when necessary. Commonly used lipid-lowering drugs include simvastatin, atorvastatin, and rasulvastatin. When triglycerides are higher than 5.65 mmol/l, fenofibrate or gemfibrozil should be added to reduce the risk of pancreatitis.