The basic pooling fund payment refers to the use of social security pooling funds to pay the related medical expenses of the insured. Part of the social security fees paid by individuals and units will enter the social security pooling account, which will be earmarked by the social security fund for unified overall payment of medical expenses. The expenses incurred by the insured in designated hospitals can be reimbursed, and the expenses for reimbursement come from the social security pooling fund.