Abstract:Drought disaster is one of main natural disasters in China. In recent years,continuity and extreme drought disasters occurfrequently , which seriously threaten food security , water salety and ecological securty. Soil moisture is a important factor of droughtmonitoring.Remote sensing technology can be widely used in the soil moisture monitoring with its advantages of larre observation range ,powerful real-time performance and low cost. ln this paper , the relationship between soil moisture , normalized difference vegetation index(NDVI) and land surface temperature (LST) was analyzed , and a remote sensing monitoring soil moisture model was set up based on NDVIand I.ST. In the end,based on MODlS image and ground measured data, a dynamic monitoring of soil moisture was carried out in ShandongProvince from October 2010 to May 2011. The results show that the drought in Shandong Province began in October 2010 , then became moreand more serious ; Due to raining , the drought , eased a little in the end of February 2011 , soon became serious again ; ln may 2011 , thedrought bhasically disappeared. The most serious area of drought is the south Shandong Province. The monitoring results agree with the actualsituation.