Recognize the characteristics of the inter-provincial transportation hidden carbon transfer scientifically, which is significant to evaluate regional carbon emission correctly and reasonably and make the regional carbon reduction policies. With the China's interregional input-output tables in 2007 and 2010 years, this paper measures the transportation hidden carbon and researches the features of inter-provincial transportation hidden carbon transfer. The results show that: (1) The Shanxi, Hubei and et al in central-western regions is the major importer of carbon emission, and the Tianjin, Jiangsu, Fujian and et al in eastern regions is the net exporter; (2) The transfer size and density of the eastern, central and western regions present the decreasing tendency. The more advanced the economy, the higher the transportation hidden carbon emission. In China, the Beijing-Tianjin-Hebei Economic Band is the most cohesive region about size and density. As the results, the responsibility of provincial transportation carbon emission should be properly adjusted, and regional linkage carbon emission policies should be implemented.