Based on the theories of social security level and optimal level model, the paper analyzes the expenditure level of social security benefits in North-east China, and basically concludes that the whole social security level is low and out of place in its structure. Moreover, from the perspective of the drawbacks in social security system, the paper analyzes the causes that lead to current situation of social security. Using the theory of social security supply-demand balance and social security efficiency criterion theory, the paper proposes some suggestions and measurements to improve social security level.
