The method of using the underlying surface temperature from the forth channel data of AVHRR to monitor the drought in centeral Sichuan Province is described,and some interesting results are obtained. The underlying surface temperature is much linearly interrelated to the drought index,and it's spacial distribution is almost consistent with the condition of drought.Through comprehensive analysis of the underlying surface temperature from remote sensing,realtime surface observations,observations from agriculture meteorology,and information from the drought,it is possible to monitor the trend of a drought for large area in real-time.