Implantable cardioverter defibrillator (ICD) is the most effective measure to prevent sudden cardiac death. However, ICD patients frequently have problems such as decline of exercise tolerance and quality of life, anxiety and depression after operation, which require cardiac rehabilitation (CR). A considerable amount of studies have proved that CR is an effective secondary prevention measure for patients with cardiovascular disease. Its safety and effectiveness have been supported by evidence-based medicine research, which can prevent the recurrence of cardiovascular events, reduce the readmisson rate, and promote healthy behavior and active lifestyle formation of patients, so as to improve the quality of life of patients. This review mainly summarized the necessity, safety, exercise program and economic benefits of CR in ICD patients.