Abstract: This poper is the preliminary research of "the hierachical method of global change monitoring". The theory of entropy has been used in FBIM-Feature Based Image Matching by the operator of Förstner. The preliminany system has been established for matching of NOAA/AVHRR image. The sufficient matching points can be collected using threshold. The mean error of row and line are 0. 6 pixel and 0. 3 pixel. The results of matcning are satisfactory.