Applying the regional economic theory, the changes of insurance industry of China and America (including premium, share of market, insurance penetration insurance density and investment in-come) are studied. This paper shows the changes of insurance (life, non-life) after financial crisis. According to the theory of SCP, we analyze the difference of concentration ratio of two countries, and give the insurance growth models of China and America, analyze the differences between two countries. Also, we give some suggestion on development of insurance industry of China.