社会保障制度包括养老保障、失业保障、医疗保障、意外伤害保障和生育保障五个部分,其中最重要的是养老、失业、医疗三大保障。医疗保障制度是社会保障制度中的重要组成部分,原有的公费和劳保医疗制度已经难以适应新的形势,而几年来各地医改的实践又已证明:医疗保障制度改革是各项社 The social security system includes pension insurance, unemployment insurance, medical insurance, accidental injury insurance and childbirth protection. The most important of these are the three guarantees of pension, unemployment and medical care. The medical security system is an important part of the social security system. The original medical expenses system and labor insurance system have been difficult to adapt to the new situation. In recent years, the practice of medical reform has proved that the medical insurance system reform is a