Frozen shoulder, known as periarthritis, is a common condition that is characterized by shoulder joint pain and limited mobility. It is a chronic aseptic inflammation of the soft tissues around the shoulder joint, including the muscles, tendons, bursa and joint capsule. The inflammation leads to adhesions inside and outside the joint, which affects the movement of the shoulder joint. In general, proper treatment can lead to a shorter course of the disease and early recovery of motor function. Some patients are blindly treated without proper diagnosis and lose the best time for treatment. After diagnosis, timely and effective treatment is crucial. Functional exercise and post-rehabilitation health care are also very important. During the treatment of frozen shoulder and later rehabilitation, strengthening physical exercise is an effective way to prevent and treat frozen shoulder. The purpose is to strengthen the strength of the tissues around the shoulder joint to protect the shoulder joint and eliminate shoulder muscle fatigue, but this functional exercise should be done without aggravating the patient’s pain. It is generally advocated that treatment and functional exercise should be carried out simultaneously to avoid post-healing complications, with correct functional activities, and post-rehabilitation health care is crucial. By doing the above, frozen shoulder can be effectively treated.