The medical insurance fund for serious illness of newborn is an insurance method selected for the situation that children may have serious illness in the future, so as to ensure that a certain proportion of children can go to the insurance company for reimbursement of medical expenses when they get sick in the future. According to the relevant public information, I know that in the process of children's growth, the biggest threats are probably diseases and accidents. At present, the medical expenses are very high, and the facilities and equipment in small hospitals can hardly guarantee the curative effect. The cost of a big hospital is really high. It is necessary to buy insurance. In the face of large medical expenses, a large proportion of medical expenses can be reimbursed, which will effectively alleviate the delay caused by economic problems.