Medical insurance fund payment refers to the payment of medical insurance workers and retirees from social coordination funds and personal account funds according to the scope and standards of expenditure stipulated by national policies, including hospitalization expenses, outpatient and emergency medical expenses, personal account funds and other expenses.

For example, if the medical expenses incurred for hospitalization due to illness are reimbursed by medical insurance according to the corresponding reimbursement ratio, then part of the reimbursement will be paid by the medical insurance fund, and the individual will bear little.