The type and process of precipitation, and the climate condition are complex in mountainous area, and biases exist in the observations of various precipitation gauges. It is urgent to understand the difference between measurements from manual and automatic gauges, and the difference between the gauge measurements and the real precipitation. Comparison of precipitation measurements was carried out in the Hulu watershed of Heihe river upstream in the Qilian Mountains from September 2014 to August 2017. The Chinese standard precipitation gauge[no wind shield (CSPGUN) and equipped with single Alter wind shield (CSPGSA)] and the TRwS204 weighing precipitation gauge[equipped with single Alter wind shield (TRwSSA)] which was commonly used in the Qilian Mountains were used. Choosing the adjustments of the measurements from the Chinese standard precipitation gauge installed in accordance with the Double Fence Intercomparison Reference recommended by the World Meteorological Organization as standard precipitation. The results show that:(1) The average dynamic losses (the percentage of the average dynamic losses relative to the average standard precipitation) of CSPGUN, CSPGSA and TRwSSA were 0.21 mm (3.4%), 0.12 mm (1.9%) and 0.61 mm (9.8%) for rain, and 0.37 mm (7.6%), 0.16 mm (3.3%) and 0.51 mm (10.5%)for sleet, and 0.27 mm (10.2%), 0.09 mm (3.4%) and 0.57 mm (21.4%) for snow, respectively. (2) The difference between dynamic losses of CSPGUN and CSPGSA was mainly related to the effect of the wind shield. The difference between dynamic losses of CSPGSA and TRwSSA was mainly related to the different gauge shape, and it could also be affected by the specific errors of TRwS204. (3) For rain, gauge catch ratio decreased a lot when mean wind speed was higher than 2.0 m·s-1. Because the mean wind speed was relatively low for sleet and snow, only the catch ratio of CSPGUN decreased with the increase of wind speed for snow.
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