In the past few years，Kunshan has practiced the development concept of “green mountains and green hills are Jinshan Yinshan”，and strived to take multiple measures to win the tough battle of pollution prevention and control. For a large amount of pollution sources，it is necessary not only to control the source，but also to launch a concentrated attack campaign. At the same time，vigorously promote the construction of supporting systems and governance capacity，provide institutional guarantee for pollution prevention and ecological restoration，escort high-quality economic and social development，and add luster to the construction of “Beautiful Kunshan”. Up to now，Kunshan City has successfully established a national demonstration city of ecological civilization construction，won the evaluation of Jiangsu Province as an incentive county with obvious achievements in ecological environmental protection work，and won the first place in Suzhou City for two consecutive years.