It means to carry out activities in a relatively closed environment, which has nothing to do with the outside world. Ensure that ordinary people have clothing, food, housing, old age and medical care. Enterprises that guarantee supply, people's livelihood and production can continue their production and operation after being approved by the epidemic prevention and control headquarters in their respective districts, implement the main responsibility of epidemic prevention and control, and strictly implement various prevention and control regulations.

The so-called closed operation means: (1) The cooperative medical fund can only be operated among the financial departments, agencies, designated medical institutions and participating farmers who reimburse medical expenses, and cannot flow to other places; (2) The transfer of cooperative medical fund between financial departments, agencies and designated medical institutions can only use bank notes, not cash; The second is to standardize the fund operation procedures. Personal funds are collected annually, according to the process of one village, one township and one county, and deposited in special fund accounts; Local financial support funds are allocated by local financial departments at all levels to the special fund accounts of pilot counties (cities) according to the actual number of participants; The third is the rational use of funds. Counties (cities) scientifically and reasonably determine the payment scope, payment standard and amount of the new rural cooperative medical fund according to the total amount of funds and local conditions, and determine the specific inspection items and methods of routine physical examination to prevent the fund from overspending or redundancy. Fourth, financial management and accounting systems have been established and improved. The accounting institution of the Fund is located in the handling institution, and the personnel shall be employed by the handling institution according to the requirements of the Accounting Law, so as to ensure the quality of accounting personnel and follow the avoidance system. Carry out daily financial management according to the accounting method of the new rural cooperative medical fund. The fifth is to strengthen the supervision of the use of funds. Agencies regularly report the use and income and expenditure of funds to the Joint Management Committee, and announce the compensation to the society and participating farmers through posting, so as to ensure farmers' right to know and supervise.