Since China's opening up to the outside world, it has always adhered to the concept of “tolerance is greatness”, and brought closer the political, economic and cultural links between China and other countries. It is against this background that the relationship between province A and other regions is getting closer and closer, and the role of foreign trade (FT) exchanges in promoting EG is becoming more and more significant, thus gradually becoming a new power source of EG in province A, and also providing a new historical starting point for the development of FT in province A. This paper discusses the relationship between FT and economic growth(EG) by using the data of province A and the import and export trade forecasting algorithm from the three aspects of dependence, pull and growth elasticity, and makes in-depth analysis on the problems existing in the development of FT in province $\mathbf{A}$, hoping to provide a model for other provinces to develop FT.