Abstract：In order to explore the impact of regional urbanization on atmospheric pollutant concentration, eight urbanization indicators such as per capita GDP, comprehensive energy consumption, urbanization rate, built-up area, and proportion of the tertiary industry were selected for correlation analysis with atmospheric pollution indicators in terms of population size, economic development, and urban construction. It took 18 cities in Henan Province as the research objects, and collected these cities' data on PM₍2. 5) , PM₁₀, SO₂, NO₂, CO, and O₃from January to December in 2016, also consulted the Statistical Yearbook of Henan Province ( 2017) . The results showed that: ( 1) There was a significant positive correlation between PM₍2. 5) and PM₁₀concentration and the level of urbanization in 18 cities of Henan Province. In the process of urbanization, it would help reduce the PM₍2. 5) and PM₁₀concentration by controlling the emission of pollution sources and increasing the efficiency of energy use. ( 2) SO₂pollution was great affected by the level of cities' economic development and proportion of the tertiary industry. Energy consumption had a great influence on NO2 pollution. The pollution level of O₃might be affected by the level of urban economic development, built-up area, energy consumption and the use of motor vehicles.

Keyword：regional urbanization;atmospheric pollution;environmental protection;