In order to understand the fluctuation change of water level,water surface area and water storage of inland lakes under the background of climate change,it is necessary to scientifically and rationally guide the utilization and development of lake water resources. The changes of Bosten lake water storage were estimated by the lake water area and water level that derived from the Landsat TM/ETM/OLI imagery and multi-mission satellite altimetry dataset,respectively. The Normalized Difference Water Index (NDWI) was used to extract the lake water area of Bosten Lake,and the lake surface water level was derived from the satellite-borne altimetry data. The observation data of the lake water level was employed to certify the satellite-derived water level. According to the correlation between lake area and water level, water storage and water level,the serial curves of lake water storage fluctuations was constructed. The inter- annual characteristics of water level and water storage change were also discussed. The results showed that the absolute errors of the derived-water level of ICESat-GLAS,ENVISat&ERS and Jason-1&2 were less than 0. 21 m,0. 18 m and 0. 15 m,respectively; and has strong correlation and consistency with each other. The lake level continued to increase from 1990 to 2002; however,it declined from 2002 to 2015. The lake water area in 2015 reduced by (32. 20 3. 5) km~2 compared with 1990,the annual average water level in 2015 decreased by (0. 81 0. 19) m,and lake water volume in 2015 decreased by (0. 949 0. 022) billion m~3. Therefore,the change of lake water storage provides a reference for understanding the impact mechanism of the climate system and human activities.