As a new China's oldest insurance company of China,one of the life is always the Portland trail blazers and China's insurance industry leader,was established in 1949.But because the operational risks of enterprise is itself,so all sorts of risk will inevitably concentrated in the life insurance company; And internal control can effectively to risk identification,assessment,control and monitoring.And the insurance company through the sales of insurance products gain a lot of cash flow,again through these funds for a certain proportion of investment again to gain benefits,so this is a constantly financing and continuous investment process,is a big cash flow,also need to internal control management.So the internal control are particularly important.This thesis research object is exploring the internal control system,the article of the internal control system of some basic concepts and development process.Again with in huaian branch as examples,the paper expounds the present situation of internal control system and the existing problems,and according to the questions some Suggestions to improve the life insurance company internal control of the situation.