Abstract: Based on China's air quality condition analysis, it was shown that while the control of SO₂ and PM₁₀ had achieved positive progress, complex atmospheric pollution problems such as haze, photochemical pollution had been increased. The existing API system of air quality daily report had shown its limitations. Also, based on the data collected from the monitoring sites in the cities of Tianjin, Shanghai, Chongqing, Guangzhou and Ningbo, the impacts of adding different monitoring factors into the existing air quality daily report system on the fine days were evaluated using three estimation programs. It was thus proposed that monitoring factors such as O₃ and PM_2.5 should be added to the existing air quality daily report system.