In order to calculate the glacier meltwater contribution to the inland lake water storage fluctuations in the Tibet Plateau, the water level and area is of great significance for the lake water balance in the basin. Taking Hala Lake valley glaciers for example,based on 2000-2015 satellite radar altimeter data and Landsat multi spectral remote sensing data,the paper respectively extracted the changes of lake level and area. Combined with the nearby Toler meteorological observation data, it further analyzed the fluctuation of water level change and glacier loss on lake water.The results show that impacted by the increase of annual and summer precipitation in Hala Lake basin, the water level of Hala Lake basin appears the increasing trend,but the glacier loss acceleration trend is not obvious.Compared with 2000, the lake area of Hala Lake has increased by (21.4±4.8) km2 and the corresponding lake water level increased by (1.68±0.26) m which the lake water storage increased by (1.61+0.03) billion cubic meters. The contribution rate of glacier mass loss to lake water volume in the basin is 39.65%.The increase of precipitation contributes 22.82% to lake water volume.