Children's mutual fund is a kind of basic medical insurance, which provides protection for students in Chengdu. Belonging to social security, users can choose whether to buy according to their actual situation. The main function of children's mutual fund is to reimburse medical expenses when children are sick, which is a practical insurance option for some families with economic conditions. Buying children's mutual fund is not compulsory, and each family can decide whether to buy this insurance according to their own situation and needs. Before considering buying, users are advised to carefully evaluate their financial situation, children's health status and other insurance options in order to make an informed decision.