The natural implications of military action affect the security of the borders. The most important geographical factors affecting the security of borders in drought, spatial and spatial relationships, topography and drainage, geology and soil, vegetation and climate (climate). The current research is applied-developmental and its method is library and surveying. The purpose of this study was to investigate the influence of natural and climatic factors on the security of the boundaries of North Khorasan Province. To assess the effect of natural factors on border security, multivariate regression analysis was used in SPSS software and after identification of criteria, we made the provision of spatial databases In ArcGIS Geographic Information System. After standardizing these criteria in the method (fuzzy logic and AHP) in the software environment, using specific identification tools, each weight was assigned a specific weight. Then, by combining and overlaying these criteria, based on (AHP model and fuzzy logic), the final map, which indicates the appropriate and unfavorable areas, was obtained and finally, in order to plan for a variety of military activities, the study area in the map produced to relatively moderate Suitable, appropriate and inappropriate.