Spatial data is object primarily researched and expressed in GIS, and its uncertainty is one of researching hot issues. Attribute information uncertainty is one of spatial data uncertainty, and it can directly affect the quality of GIS-based decision making, especially in the field of attribute analysis. Based on information theory and fuzzy set theory, this paper makes a quantitative research to the uncertainty of attribute information, and proposes a fuzzy entropy model of attribute information uncertainty in the case of linear membership function of attribute information distribution. This paper also investigates the fuzzy entropy propagation model of a few attribute information uncertainties and makes a pilot study about fuzzy entropy bands at the end.
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