Endowment insurance fund, also known as retirement fund, is the main means to realize the endowment insurance system in various countries, that is, the payment that employees get from their employers after working for a certain number of years can be one-time payment or regular lifelong payment.

(1) Sociality. As a social policy to promote social and economic development and social stability, endowment insurance has a strong sociality in fund raising, payment and fund asset operation, which reflects social or government behavior in both management process and specific links.

(2) savings. A considerable part of social endowment insurance funds are pre-raised through personal accounts, especially accumulation funds, which are mainly pre-raised through personal accounts to save for future pension payment.

(3) mutual assistance. The collection of social endowment insurance funds should be coordinated to achieve social mutual assistance and reduce the pension risk of workers. The main manifestations are as follows: ① the fund raising is jointly undertaken by the state, employers and individuals, and part of it is set aside as a social pooling fund; (2) The operating income of the fund is fully incorporated into the fund, exempt from taxes and fees, and belongs to all policyholders, and is not shared according to the amount of individual contributions; (3) In addition to individual contributions and savings, in the case of the death of the insured, the amount or unused part of his personal account will be included in the social pooling fund.