Abstract: The regional difference of IFDI on OFDI was analyzed by using the provincial panel data from 2003 to 2013 in China. The double threshold effect of IFDI on OFDI was found based on the threshold model. Moreover， IFDI scale， per capita GDP and per capita export all have a double threshold effect. The results showed that the effect of IFDI on OFDI was not remarkable based on the total samples， but there were significantly different promoting effects of IFDI on OFDI based on the samples of eastern， middle and western regions. The middle region exerts the biggest effect followed by the eastern and the western regions. According to the double threshold model， the promoting effect of IFDI on OFDI was the strongest in condition of medium-sized IFDI scale， medium-sized per capita export and higher per capita GDP. Accordingly， some suggestions were put forward which may promote “bringing in” and “going out” countermeasures.

Key words: inward foreign direct investment, outward foreign direct investment, regional difference, threshold effect