The people-friendly commercial supplementary medical insurance (Huimin insurance) is a product form of commercial health insurance, which is an important part of the multi-level medical security system and has developed rapidly in recent years. Medical security departments should clarify their responsibilities in carrying out the work of Huimin insurance, play the role of guidance, promotion, support and standardization, and give support and help in publicity, data, financing, settlement to promote the healthy and sustainable development of Huimin insurance, build a dense medical security network to meet the diverse needs of the masses, and pay attention to the prevention of risks such as data security and fund security.