In the process of rapid economic development in China，extensive production and management methods have left a lot of environmental pollution problems. The event of haze and smog，which is large area covering and long-time lasting，is one of them. China has initially established the legal system of haze and smog governance and control，which also has been playing a decisive role in the control of air quality deterioration and in the efforts for the improvement of the air quality. With the deepening of the work，further strengthening the legal construction of haze and smog governance and control is the basic guarantee for China to achieve the goal of air quality management. This article takes four aspects，from the legislation，the law enforcement，the judicature and the legal popularization，to look at China’s legal system construction of haze and smog governance and control. Through the literature review，this paper analyzes China’s legal system construction of haze and smog governance and control，including the present situation and the existence question. The conclusion is that the legal construction of the future governance and control of haze and smog in China should take consideration from the four aspects mentioned. In the aspect of legislation：the introduction of relevant laws and rules in details should be carried out as soon as possible；supplementary pollutant species should be include into a holistic system；increase the cost for breaking the environmental law and regulation；straighten out all levels of government and corporate environmental governance responsibilities. In the field of law enforcement，we should establish a contingent of environmental law enforcement teams with adequate capacity，adequate population and excellent equipment；and establish a long-term mechanism for environmental law enforcement. Strengthen judicial interpretation of the atmospheric environment in judicial matters. In popularizing law，we should strengthen the consciousness of public participation and make clear the ways and means for public participation.