There is no optimal treatment for unstable angina, and it is important to choose the appropriate treatment for the condition under the guidance of a physician. Unstable angina belongs to a kind of coronary heart disease, the patient’s coronary arteries may have different degrees of stenosis, and coronary angiography is performed to assess the severity of the condition. Patients with mild to moderate stenosis of the coronary arteries can be treated with oral medications, commonly used medications include aspirin, resuvastatin, isosorbide nitrate and other medications to improve the patient’s symptoms and slow down the progression of the disease. Patients with severe coronary artery stenosis can be implanted with stents to improve blood supply, and particularly severe patients can also undergo coronary artery bypass grafting. Patients with unstable angina should be evaluated by coronary angiography to assess the degree of coronary artery lesions, formulate a specific treatment plan, and under the guidance of a physician.