While prosperously going on, the Chinese economy is developing an unsteady element in it. To effectively control the unsteadiness, the establishment and improvement of a sound social security system is an unavoidable choice. A social security system is the natural product of the market economy system. It is one of the principal ways for the state to interfere with its economy, and one of the important means to resolve the conflicts in the society. It is also a basic system that allows space for the producti...