Why don't outpatient co-ordination be carried forward to the next year? Outpatient co-ordination is paid from the medical insurance co-ordination fund, which is the income and expenditure of the current year and is not carried forward to the next year. Carrying forward to next year does not conform to the "law of large numbers" and "economic principles" of insurance. Medical insurance fund cannot be understood as personal savings, and outpatient co-ordination fund cannot be understood as personal account. The outpatient co-ordination fund unused by the insured during the year will automatically enter the large plate of the basic medical insurance fund for urban and rural residents, and play its economic guarantee role in reimbursing the insured himself and other insured persons for hospitalization, serious illness, maternity and outpatient special diseases. If the medical insurance fund is regarded as personal savings, the amount that each person is required to pay is used or carried forward as a "personal account" in the current year, which loses the significance of accumulating a "fund pool" for medical insurance to achieve "mutual assistance and economic security". Without mutual aid, there is no medical insurance fund, and there is no financial support for medical insurance.