Alongside the rapid growth of the petroleum and chemical industries in the beginning of 1960s, the number and extent of effects of industrial accidents has increased. Accidents such as Flixborough England in 1974 or toxic gas leakage accident in Seveso, Italy in 1978 are just a few examples. These events, opposing to events before the 1960s, has adversely affected beyond the plant boundaries. In such context, land use planning serves as an important management procedure in which tries to optimize land use patterns such industrial spots through land use planning guidelines. This study is aimed to plan spatial pattern of land use in Bakhtiardasht industrial park. First, the physical vulnerability Caused by consequences of 5 dangerous substance accidents was modeled by using the specialized software safety (PHAST). Then Social indicators was measured because they are playing a vital role in determining of the social vulnerability of humans to chemical risk, besides the hazard levels of potential risks (physical vulnerability). After preparing the three indexes, they were combined together and then finally mapped (map planned with three indexes), for residential development, was obtained. Because several studies in the literature has been used only two physical and social vulnerability index of derived land use planning scheme, So in this study, two indexes namely physical and social vulnerability were also combined, finally the map land planning with two indexes was prepared. The results of the modeling 5 hazardous substance showed that among these materials the most range of emission is for Ammonia, chlorine gas respectively. Finally the zones of release of ammonia was determined as zone of physical vulnerability. With preparing the map of social vulnerability, it has been found that not only the extent of the vulnerability diffused distributed throughout the region industrial areas but also is in whole area. Prioritization environmental map showed that the lowest residential development priorities is located around industry and with distance from industry, environmental priority of areas for the development become increased. The resulting map of the land planning schema with two factors and with three factors showed that three factors map, separate Priority areas for residential development better and more rational than map with two factors. For example, some areas on the map with two factors in the second priority and on the map of the three factors in third priority for residential development. The primary objective of this research is that these areas may be in terms of physical and social vulnerability on the 2nd class but because of the high degree of slope and proximity to industry, these areas will eventually in Map with three factors are located on the 3rd class hence, 3rd class in this area were best conformity than 2nd class.