The concept of wind effects on precipitation measurements is intro-duced. Based on the comparative, measurements obtained with different , gauges, the efficiency of wind shields under, different precipitation conditions and the relationships between the capture rate of a gauge and the average wind speed are determined.With the correction of the errors caused by wind effects in precipitation measurements, relatively accurate values of summer precipitation at the observation point (43°06/N, 87°15'E; 3588m, a.s.l.) in the source area of Urumqi river is obtained.