Abstract: Based on the review of research on China transport CO₂ emissions at national and regional level, the obstacles and shortcomings were identified. We proposed the methods and related parameters to tackle this problem. Using China emission factors and our methods, CO₂ emissions in road, rail, aviation and navigation sectors at national and regional level in 2007 were calculated. The results show that China transport CO₂ emission in 2007 was 436 Mt, accounting for 7% of the total fuel combustion emission, which is lower than that of global level of 23%. The road transport is the dominant emission source with shares of 86.32% in total transport emission.