This paper analyzes inanition problem issued by FDI inflows in China manufacturing, and points techoverflow effect and employmentimprovement effect of FDI for China manufacturing are susceptible. Using “economy growth” model by G·Grossman and P·Howitt for reference ,on the basis of academic models, the writer draws the volume of FDI inflows into China manufacturing. At the same time , in virtue of related data and Eviews software, the writer builds production function of FDI manufacturing and accordingly undoes inner problem of manufacturing. At last, in view of “inanition” phenomenon, this paper advances suggestions in such areas as control of FDI inflows, using FDI manufacturing for reference.