Abstract:The exhausted gas discharged from transportation is one of the main sources of the air pollution.Only by changing the traffic structure to lower pollutant sources in amount can it clear the atmosphere and protect the environment from the source.High-speed railway is a kind of the clean and green transportation tool because it takes the electronic power as a drive,has no exhausted gas discharged,and has basically eliminated the dust and soot when it is in operation.Compared with the other transportation tools the high-speed railway has the unique superiorities in saving land resource and energy.Furthermore its governance cost caused by the environments is also the lowest.High-speed railway is the commonly developed traffic tool in the world nowadays.With the demand of low carbon life,high-speed railway will be more and more popular.To develop the high-speed railway is beneficial to the propelling of the development of China’s low-carbon economy and it has become the key strategy for China to adjust and optimize their traffic structure.