The city of Tabriz, with its very strong history and sports culture, suitable facilities and general interest in sports, can be known as an important base for investment and sports development in Iran. In Tabriz, there are many motivations and incentives to invest in sports. However, this process requires a valid and efficient paradigm model for sports investment that is focused on adapting to local needs and opportunities, sustainable development, attracting capital and effective management of resources. This research presents the strategic model of sports investment development in Tabriz city by using the qualitative research method and foundational data theory. The statistical population of the research included people with management experience at different levels of sports in the province, professors of sports management at universities in the northwest of the country, experts and activists in the field of sports economics. 14 people were selected to conduct interviews using targeted theoretical and snowball techniques. The results showed that the causal factors include management principles and financial incentives for investors, and the background factors include the quality of sports, sports participants, sports events, and the role of the media. Also, the intervening factors included government management, international political and legal framework and environment, formulation and implementation of laws and provision of executive infrastructure. Sports investment development strategies included profitability for investors, sports marketing, creating an economic mechanism, as well as economic stability and power, and the resulting consequences of expanding sports in society, cultural interactions, and promoting the attitude of capital, and creating economic capacities and indicators. Finally, the components of the factors related to sports, political-legal, economic, cultural-social, managerial-executive and investment in promoting sports were also identified as the main factors in the development of sports investment in Tabriz city. This model is a suitable and local framework for studies in the field of sports investment development and can be used as an introduction for the development of sports investment in Tabriz city.