One of the main characteristics of Iran's big cities is the existence of dilapidated urban tissues, which, with the view of the condition and high risk-taking of these tissues and the residence and livelihood of millions of people in them, the need to prepare to deal with natural crises, Therefore, reforming the urban structure in worn-out structures based on sustainable development and paying attention to issues related to crisis management is one of the necessities of the urban management system. Dilapidated structures, especially in metropolises, have become a huge threat and crisis, which requires investment and the effective presence of the private sector in order to rebuild and modernize it in order to deal with crises such as; Fires, earthquakes and other disasters make it very necessary to provide services in these areas. Based on this, the main goal of the current research is the need for urban planning in the security organization of the worn-out urban fabric from the perspective of sustainable development in the worn-out fabric neighborhoods of the 18th district of Tehran Municipality using descriptive-analytical methods and in the form of a survey. To achieve this goal, all urban residents of the study area and relevant experts have been considered as statistical population. From this community, 90 people were randomly selected based on Cochran's method. Statistical tests such as Student's t test, regression and path analysis were used to test the hypotheses and also prioritize the factors and objects that are under the influence of organizing worn out tissue. The results of the research show that the direct and indirect effects of environmental, social and economic components have an impact on sustainable urban development, and internal factors and forces in environmental, social and economic dimensions are effective in achieving sustainable development in the studied area.