According to the improved experimental social security plan, in the field of endowment insurance there are some new progresses.It firstly makes clear the overall social fund and personal fund to be administrated separately.Individual will be the only party who pays the personal account.Reduce the proportion of personal account's fund.Provide clearly to establish the business enterprise annuity, the source of the fund and its operation model.There are also some unresolved issues in the plan, such as the reformation of the public servants and institutions' endowment insurance system, the mechanism of maintenance and increment of value of personal account and its paying ways, the problem of intermediary's debts, etc.These issues should be explored based on the definite policies in the experimental area in order to quicken the steps of improving endowment insurance system.