In the applications of GIS

the attribute data of sample point isn't often precise value

but an interval range.The modeling

analyzing and reasoning of this kind of data has gained more and more attention from researchers.The method describes the fuzzy regions determined by indeterminate attribute value using interval valued fuzzy sets.Based on the operation property of interval value and interval valued fuzzy sets

the analyzing model of topological relations between fuzzy regions is proposed.It improves the original topological relations model that use traditional fuzzy set and cut-set.The analysis result accords with the cognitive principle of people and can be used to reasoning and make decision.It can efficiently judge the topological relations between fuzzy regions determined by interval-valued attribute and it is valuable in the fields such as GIS

geography and spatial databases.