With China's rapid economic development, the improvement of material life and spiritual living standards requirements, national, provincial and municipal levels of government more and strengthen the management of environmental engineering, sewage, garbage, park construction are to be included in the government focus engineering inspection, perspective, and also increased investment in urban environmental infrastructure construction, environmental construction, the level of infrastructure has also been improved, the rate of sewage treatment, garbage disposal rate, the green coverage also have some upgrade, the atmosphere or water quality contrast to the past has been significantly improved.