Rotator cuff tears are usually not self-healing and can be treated conservatively for mild symptoms or surgically for severe cases. The rotator cuff is made up of the supraspinatus, infraspinatus, teres minor and subscapularis muscles. Most rotator cuff tears are caused by indirect violence or strain, and can be classified as partial or complete tears according to the degree of injury. Since the tendon tears cannot heal on their own, different treatments are needed depending on the degree of the condition. For mild rotator cuff tears, when the tear length is less than 2-3mm, non-surgical treatment can be chosen. Local injection of drugs that nourish the tendon, such as sodium vitrate, has a certain effect on repairing the tendon. Infrared and microwave physiotherapy can be administered around the joint to promote local blood circulation and accelerate absorption, which is beneficial to the recovery of the injured tendon. For patients with severe rotator cuff tears, which have been completely ruptured or have deep tears, minimally invasive shoulder arthroscopy can be applied for rotator cuff repair surgery. Patients with rotator cuff tears should pay attention to rest, strengthen nutrition, avoid strenuous exercise, lift heavy objects, and move appropriately to prevent muscle atrophy.