This paper empirically analyzes the regional differences in the effects of Chinese outward foreign direct investment(OFDI)on home country's export structure optimization by analyzing the panel data of 29 provincial-level administrative ar-eas of China from 2003 to 2013. The results show that outward foreign direct investment has a positive effect on structural im-provement of Chinese export commodities. However,there are differences in OFDI's home country export structural improve-ment effect between the pr...