(1) Concentrate the national financial reserve funds. Fund is a kind of monetary fund set up in the national budget, which is specially used to meet unexpected expenses and special needs in the national economic plan, such as the relief of catastrophic natural disasters, foreign invasion, mistakes in the national economic plan, etc. (2) Insurance funds of professional insurance organizations, that is, insurance companies and other insurance organizations collect insurance funds by collecting insurance premiums to compensate insurance units and individuals for losses caused by disasters or pay insurance benefits when due. (3) Social security fund. As a national social policy, social security aims to provide a series of basic living guarantees for citizens. (4) Self-insurance fund, that is, economic units raise insurance funds by themselves to compensate for the losses caused by disasters and accidents.