Provide a certain degree of medical expenses protection for the insured. The system of large medical subsidies for medical insurance is organized by the government or insurance companies, and a certain amount of medical expenses subsidies are provided to the insured through certain financing methods. The specific amount of large medical subsidies varies from region to region and different insurance schemes, but it will cover a certain proportion of medical expenses to reduce the economic burden of the insured. The large medical subsidy for medical insurance mainly aims at the situation of high medical expenses, providing patients with a certain degree of economic support, thus reducing the economic burden of patients, which is especially important for patients with poor economic conditions, and can avoid poverty or returning to poverty due to illness. Through large medical subsidies, the government or insurance companies can better integrate and utilize medical resources and improve the level of medical security.