In recent years,the conditions of the underlying surface of the Loess Plateau have changed greatly.We researched the changes of water storage by using multi-source data to further reveal the regions water cycle process.GRACE data were used to study the temporal and spatial characteristics of Terrestrial Water Storage Changes(TWSC)in the Loess Plateau for 2003~2015 years,combined with the atmospheric circulation data,TRMM (3B43)precipitation,GLDAS evaporation and MODIS surface temperature data to analyze the impact of climate change and human activities on TWSC.The results shown that:①in the 2003~2015 years,the TWSC of Loess Plateau showed a decreasing trend with the rate of-5.161.51 mm/a,and the seasonal variation shown autumn>winter>summer>spring.②in the past 13 years,the TWSC of Loess Plateau were decreasing from west to east,and the whole were in the state of loss,the minimum value was up to-4.5cm.③Precipitation has a greater influence on the TWSC in the southwest and south of Loess Plateau,but the surface temperature plays dominated role in the southeast and east.④Human activities have a greater impact on TWSC in Shanxi province and the border zone of Shaanxi,Shanxi and Henan.The comparative study of multi-source data can more accurately reflect the spatial and temporal distribution of water storage changes in the region,and it also have great significant for further research of water cycle process.