Abstract: The implementation of supplementary medical insurance for serious illness in Ma'anshan realized the "multiple level" of medical insurance and eased the medical burden of the personnel involved. However, during its operation, problems such as the access to raising money is single, insurance for serious illness leads to excessive expenditure and the like have severe impact on the healthy development of the policy. Hence, it is a must to strengthen financial security, adjust the policy in a scientific and reasonable way, import business insurance actively and enhance the management and supervision of policy source so as to ensure the sustainable implementation of the policy.