Medical insurance fund payment refers to a way that the medical insurance fund pays the medical expenses incurred by the insured in medical institutions. When the insured goes to a medical institution for medical treatment, the medical institution will charge the insured a certain amount of medical expenses according to the specific items and prices of medical services. The insured can reimburse the medical expenses to the medical insurance fund through medical insurance cards or other means, and the fund will pay part or all of the medical expenses. Medical insurance, referred to as medical insurance, is a social insurance system established to compensate workers for economic losses caused by disease risks. This system has the basic characteristics of social insurance, such as compulsory, mutual assistance and sociality, and is enforced through national legislation. The medical insurance system includes basic medical insurance and commercial medical insurance, in which basic medical insurance is the main body of medical insurance.