Focusing on regional industrial transferring, this paper introduces the “economic risk”concept to characterize the uncertainty of welfare effets which China’s regional industrial transferring can take. After establishment an unified framework of analysising risk,which includes eonomic welfare risk and social welfare risk, this paper tries to assess the eonomic risk in China’s regional industrial transferring by making use of improved TOPSIS model and 2010 China’s provincial-leved data.We find that the level of China’s overall regional economic risk is at a high level, reflecting that central and western areas are particularly acute, and that economic well-being risk is notable in developed areas, while economic well-being risk and environmental polllution of social well-being risk are very prominent in developing areas.