Abstract: Based on the qualitative analysis and analog, the authors select the geological structure, topography, strata, groundwater conditions and harmful geological disasters as a geological evaluation factor. The authors analyze and evaluate the engineering geology environment quality of Fushun region through the method of fuzzy mathematics on the basis of its geological analysis, and the engineering geoenvironment in Fushun region is divided into three zones: the bad engineering geo-environment quality zone(Ⅰ);the poor engineering geo-environment quality zone(Ⅱ);the general engineering geo-environment quality zone(Ⅲ). It provides engineering geology environment background support for planning work of resource exploiting and engineering constructions.

Key words: fuzzy mathematics, geological analysis, effecting factor, engineering geo-environment quality, Fushun City