By using comprehensive crisis management programs and by implementing previously ineffective defense plans, the extent of damages and losses caused by such risks can be significantly reduced. One of the most important of these measures is the application of passive defense principles to reduce vulnerability, also using these measures can be useful for reducing vulnerability against natural and man-made hazards. On the other hand, our land, Iran, has always been exposed to all kinds of natural hazards and man-made threats (war) due to its special geographical and political situation, and has suffered human casualties and heavy financial losses. Therefore, and considering the importance of the research, the aim of this research is to evaluate the vulnerability of urban facilities with a passive defense approach in Gorgan city, for this purpose, descriptive analytical method and field survey and subsequent zoning and overlapping of information layers (IndexOverlay) It is used in GIS spatial analysis software. In this research, by using 5 road access criteria, population density, dispersion of 10+ police stations, building density and spatial distribution of vital and sensitive facilities in Gorgan city and their zoning and finally, by using the overlap of prepared layers, it is determined It was found that the northwestern part of Gorgan city is more vulnerable due to the high concentration of critical facilities such as the provincial electricity distribution company, the national distribution company of petroleum products and the regional water company, which requires more planned measures in the framework of passive defense.