This research is a survey and exploratory study to present a conceptual model for the sustainable development of Iran based on social entrepreneurship. Its approach for conceptual modeling is based on Path Analysis through Multiple Regression Method. The study has benefited from five questionnaires (four for the Delphi Method’s rounds and another for the conceptual modeling itself). The statistical population of conceptual modeling section includes three public organizations of Iran: "State Welfare Organization ," "Department of Environment ," and "Ministry of Cooperatives, Labor and Social Welfare ," which reflect the pivotal SD concepts of society, environment, and hence social economy, respectively. After setting a conceptual framework, the preliminary conceptual model was formed accordingly. Each path on the model was equal to a hypothesis. Finally, a statistically significant SD-based conceptual model of social entrepreneurship, which passed goodness-of-fit by Coefficient of Determination ( R<sup>2</sup> ) was presented.
