Last decades, most ecological scientists focused on modeling of floristic distribution because of an observable decrease in plant communities as well as their habitat limits. In this paper, ecological necessities of Allium altissimum Regel (as a valuable medicinal and industrial plant) were modeled using a fuzzy and AHP (Analytical Hierarchical Process) model based on field studies and the literature in its habitats in Khorasan Razavi province, Iran, 2014–2015. Different ecological resources including see level, aspect, slope, vegetation cover density, soil texture, distance from river, distance from access roads, distance from human habitats, land use, isohyet areas and climatic features of the study area plus AHP model were utilized in GIS environment to recognize the species habitat. The results showed habitats of Shallot through field studies and fuzzified maps basing on AHP model. The prepared suitability maps were divided into low, moderate and high quality classes and zoning maps were finally produced. The produced maps revealed 13% (18.85 thousand square kilometers), 54% (78.3 thousand square kilometers) and 33% (47.85 thousand square kilometers) of the area in low, moderate, and high suitable classes, respectively, which are mostly located in cold semi-arid climates with an elevation more than 1200 meters that provides a managerial tool for policy makers of the studied area.

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