Background and objectives: External organizational social capital is considered as the result of a set of resources, dimensions, and components in a social system related to the police force. Since social capital is a phenomenon that is difficult to grow but easily diminishes with the slightest errors, the law enforcement agencies are required to plan and policy strategically to maintain and enhance this capital. Developing appropriate strategies for promoting social capital of the police is one of the most important steps to be taken in this regard. Accordingly, this study seeks to answer the following question: what are the strategies for promoting police social capital in Tehran? Methodology: In this study, based on SWOT and qualitative method and using quantitative Matrix of Strategic Planning, strategies have been formulated and prioritized. For this purpose, strategic planning framework was used as a suitable method for answering the main question of this research to present strategies for police social capital promotion. Secondary data were also used as a basis for determining key factors. The statistical population consisted of experts in the field of police social capital, among whom 25 individuals were selected by purposive sampling method. Findings: The findings of this study show that law enforcement has good opportunities and strengths to promote its social capital. Based on the analysis, fourteen strategies were developed and prioritized to promote police social capital. The strategies formulated fall into the category of attacking strategies. Such strategies are developed based on exploiting the strengths of the system to counter weaknesses and use opportunities to mitigate threats, with the aim of maximizing strengths and opportunities (summarizing internal and external evaluation matrices, strengths and weaknesses with a score of 2. 756, and Opportunities and Threats with a score of 2. 699), which also formulated strategies for enhancing police social capital; based on this, the strategy of enhancing police efficiency and capability in law enforcement, with an attractive score of 6. 504, was set as a top priority. Results: The results show that law enforcement has the ability to plan effectively based on strategies to enhance police efficiency and capability to perform law enforcement missions with an attractive score of 6. 504, make maximum use of existing organizational and trans-organizational resources to improve their reputation and improve police dignity, promote legitimacy and popularity, and increase police authority and confidence in the community with an attractive score of 5. 499, provide a platform for enhancing the police relationship with the community with an attractive score of 4. 843, use tools and new approaches to transform information awareness and promote more comprehensive awareness on the activities and efficiency of the police to enhance their cooperation in order to promote order and security with an attractive score of 4. 071, increase police accountability and responsiveness for citizens and social institutions with an attractive score of 3. 938, improve police behavioral patterns and make a fundamental change in the field of citizenship with a an attractive score of 3. 732, and other strategies.