Abstract: By analyzing the feature of the data from mainly different low-level streamline fields in China, figures of zonal and meridional cross-section and the yearly, monthly mean wind fields over different weather stations in China, the conclusion is drawn that there is a maximal wind speed area in the boundary layer over all the stations, and 6 typical profiles of low level wind speed with altitude are got. The preliminary conclusion is that the pollutants mainly transport the horizontal and vertical directions in China, but the inflow and outflow of pollutants also exist between the east and south parts of China and its adjacent countries and areas.