Abstract:During the period of November and December in 2013, for the coefficient larger than 0.535 and sig value less than 0.01, it is concluded that there are significant positive correlation properties between GPS PWV and PM2.5. The coefficient between PM2.5 and the reconstructed PWV sequence amounts to 0.749, in which the reconstructed PWV sequence eliminates high frequency noise, small disturbances and small scale system influences. It better reflects the positive correlation between PWV and PM2.5 that the coefficient of the reconstructed high frequency between PWV and PM2.5 amounts to 0.839.