Abstract: Circular economy is a new kind of economic development model with the combination of economic and environmental profits, and an important artifice to ensure the sustainable development of national economy. It has profound economic and ecological bases, being the fittest economic development model for ecological society, and its development has important realistic meanings. Greater achievements in developing circular economy have been gained in the developed countries. This paper introduced the basic theories of circular economy, discussed its significance, development status, and existing problems in China, put forward the countermeasures for actualizing circular economy in this country, and indicated that circular economy is the apodictic choice for promoting Chinese economy in the 21^st century.

Key words: Road traffic pollution, Environmental elements, Phytoindication