This paper empirically tests the intermediary effect of physical capital accumulation, human capital accumulation and technical innovation on the process of economic growth of Fujian province promoted by foreign trade via intermediary effect model and on the basis of the data of Fujian during 19902013. Empirical results show that the import has significant boosting effect on the two intermediary variables such as physical capital accumulation and human capital accumulation and further affects the development of Fujian economy while the export is effected by the two intermediary variables such as material capital accumulation and technical innovation, however, the import is mainly the intermediary effect from human capital accumulation while the export is mainly the intermediary effect from material capital accumulation.