By combing the past literatures,it is concluded that the first China international import Expo will bring the benefit effect of consumers,technology spillover effect,industrial structure optimization effect,economic growth effect and trade relations promotion effect.According to the newclassical growth theory,by using CobbDauglas function to calculate the total factor productivity,through cointegration analysis,the import trade has been proved to have promoted the total factor productivity.From a more nuanced perspective of import trade structure to explore the impact of different kinds of commodities on economic growth,the empirical test shows that the primary goods,intermediate products,capital goods and consumer goods all have had a significantly positive impact on gross domestic product,among which the import of intermediate goods has the greatest effect on GDP,followed by capital goods,consumer goods and primary commodities.However,China’s imports of primary commodities and consumer goods have not attracted much attention.Based on the above analysis,the Import Expo effects can be continuously expanded into development direction,development of bottleneck industry,improvement of trade structure,technological absorption and enlargement of the Expo effect.