Lipids mainly include total cholesterol and triglycerides. If the total cholesterol level in plasma is greater than 6.2 mmol/L then it can be called hypercholesterolemia, and if the triglyceride concentration in plasma is greater than 2.3 mmol/L then it can be called hypertriglyceridemia, which are both dyslipidemias and have high levels. Patients with high lipid levels are diagnosed with hyperlipidemia, which is also known as dyslipidemia in clinical terms. It usually refers to the elevation of plasma triglycerides and total cholesterol, which also includes the elevation of LDL cholesterol and the reduction of HDL cholesterol. Patients with excessive fat intake and abnormalities in the synthesis and metabolism of lipoproteins may have abnormal blood lipid levels. Hyperlipidemia can be diagnosed when the total cholesterol level is greater than 6.2 mmol/L or the triglyceride concentration is greater than 2.3 mmol/L. After the diagnosis of hyperlipidemia, the treatment mainly focuses on life intervention and drug therapy, and patients should actively cooperate with doctors to reduce the occurrence and development of atherosclerotic cardiovascular diseases.