Abstract: In tiiis paper the wind speed and wind direction are compared by Doppler Sodar and in-situ measurements on 325 m meteor ological tower. When the ratio of signal to noise larger than 1,the mean wind speed and wind direction are correlated very well by the two methods, the profiles of wind speed and wind direction are close too. The mean value and root mean square of vertical velocity measured by Doppler Sodar are little bid larger than the value measured by sonic anemometer at 85 m height. The observational results are in correpondence with other four Doppler Sodar which compared with BAO tower measurements. We noticed that there are some difference in the observational results between the Doppler Sodar and in-situ measurements, especially compared with the value measured by every times. Therefor it is important to analaze the reason for the difference measured by these tvo methods and to make correction for the Boppler Sodar.