Abstract: To prevent the particulate pollution in Shanghai, the hourly data of the particulate concentration and meteorological information of ten nation-monitored stations from April 14, 2014 to March 24, 2015 were used. Besides, the cluster analysis and correlation analysis were conducted to study the spatial and temporal distribution of PM_2.5/PM₁₀. The results show that the seasonal levels of PM_2.5 and PM₁₀ changed as follows: winter>spring>autumn>summer; and the seasonal distribution of PM_2.5/PM₁₀ varied in different regions. The diurnal variation curves of PM_2.5/PM₁₀ demonstrated a bimodal trend, respectively at 05:00 and 14:00, with ratios higher before noon than afternoon. This trend may be related to the morning rush hour and meteorological conditions. Meanwhile, the particle concentration and PM_2.5/PM₁₀ showed a "weekend effect", which was related to traffic flow and human activities. In spatial distribution, the particulate concentration and PM_2.5/PM₁₀ changed as follows: background station>Puxi station>Pudong station.