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Air quality is judged by the concentration of pollutants in the air, and the quality of air quality reflects the degree of air pollution. Air pollution is a complex phenomenon, in a particular time and place of air pollutant concentration is affected by many factors, including from fixed and mobile pollution sources of man-made pollutants discharge size is one of the most important factor affecting the quality of the air. As air quality is closely related to People's Daily work and life, more and more enterprises and individuals pay attention to it. Air quality inspection comes into being at the historic moment and is playing an indispensable supervisory and control role, which is of great significance.