In order to explore the impact of different plant communities on atmospheric particulate matter concentration,taking Jinshui District of Zhengzhou City as an example, in the winter of 2020 (December 2020-February 2021), there will The PM2.5 and PM10 concentrations and meteorological factors (temperature, humidity and wind speed) of the plant communities in Lanbaowan) and the Cultural and Educational District (Henan Agricultural University) were monitored. The results indicated that the diurnal variation trend of PM2.5 and PM10 concentrations was basically the same between different places in each functional area.generally showing early high and late low; there are significant differences in PM2.5 and PM10 concentrations between different plant community structures, and the difference between the square plot and other plots is the most significant; In the three functional areas, the blocking rates of PM2.5 and PM10 were all the highest in arbor, shrub and grass structure, followed by arbor and grass structure, which were mostly higher in arbor and grass plot than in arbor and grass plot, and the lowest in shrub and grass plot and lawn; PM2.5, PM10 concentration has a negative correlation with temperature, a positive correlation with relative humidity, and a negative correlation with wind speed.