The state implemented a detailed export tax rebate policy in order to deal with the economic downturn trend,to be against the international financial crisis on the impact of national economy and to improve the international competitiveness. This paper used CGE model to simulate the export tax rebate policy on the economic and international competitiveness. Results showed that improved the export rebate rate played a positive role in coping with economic downturn,but did not bring the improvement of industrial international competitiveness. <<