The original meaning of rehabilitation is to restore the right to the original status and state. Rehabilitation medicine is the professional discipline that applies medical methods for rehabilitation. Its mission is to study and deal with the prevention, diagnostic assessment and rehabilitation treatment of disabilities and functional disorders, with the fundamental aim of helping the injured, sick and disabled to improve their ability to live, learn and work independently, to improve their quality of life and to promote their integration into society. Rehabilitation medicine is different from other clinical medicine disciplines. The first is that the focus is different. Clinical medicine is mainly oriented to diseases, focusing on removing the causes and curing the diseases. Rehabilitation medicine, on the other hand, not only focuses on the disease, but also on the patient’s ability to live and work, that is, to cure the disease and restore the patient’s function, so that he or she can be as sick as possible, but not disabled. Secondly, the treatment methods are different. While clinical medicine applies medication and surgery, rehabilitation medicine mainly applies exercise therapy, physical factor therapy, occupational therapy, speech therapy and rehabilitation engineering. Although the two are different, they are closely related and interdependent. The service targets of rehabilitation medicine are mainly four types of people: first, disabled people; second, chronic patients; third, elderly people; and fourth, patients in acute or early recovery stage. Providing rehabilitation treatment for these people is an important part of the work of the Department of Rehabilitation Medicine in a tri-polar general hospital, aiming to prevent the occurrence of unnecessary complications or to reduce the degree of disability that has already occurred through rehabilitation intervention. Of course, rehabilitation in the acute phase should not neglect the cooperation with clinical disciplines to ensure the safety and effectiveness of treatment.