Endowment insurance funds meeting the ends is the key to the sustainable development of endowment insurance system.By constructing the actuarial model for endowment insurance funds,this paper calculates the revenue and expenditure of basic endowment insurance funds of urban workers during 2018—2060 and studies whether the balance of revenue and expenditure of the basic endowment insurance funds of urban workers can continue under the background of the policy of two children and retire age delay.The research results show that under the policy of overall two children and retire age delay,the balance of basic endowment insurance funds of urban workers will have financial crisis of the revenue not meeting the expenditure since 2051,and need the governmental financial subsidy.In order to mitigate the expenditure pressure of the endowment insurance funds and prevent the unbalanced revenue and expenditure of the funds,therefore,the government should implement the scheme of retire age delay as soon as possible and use more channels to raise money to supplement the funds because the acting effect of the policy of overall two children has lagging period and because the scheme of retire age delay can only increase the revenue and reduce the expenditure to some extent and because both policies can not completely eliminate the financial crisis of the funds.