Although economic development and gaining the top rank in the region in economic, scientific and technological areas has been set as a goal of Iran’s 20-Year Vision Plan, the country has yet to come up with an indigenous development model befitting from its historical, geographical and cultural requirements. Therefore, the main questions in this study include: “What are the main characteristics of an optimal development model for the Islamic Republic of Iran?” “What are the main principles, dimensions and goals of purported economic development?” “In what ways such an optimal development can be achieved?” “Given the religious nature of the Islamic Republic of Iran, what is the position of ethics and culture in the optimal development model of the country?” To answer these questions and formulate a model for the Iranian – Islamic development, necessary information was first gathered through library method and analyzed, using a descriptive approach. Then, characteristics of an ideal society as described by the Constitution and features of a developed society as envisaged by the 20-Year Vision Plan were compared with development theories using an analytical method. Finally, suitable development strategies were deduced through analysis of internal and external environments and review of strengths, weaknesses, opportunities and threats using SWOT analysis. To determine the position of ethics and culture in the desirable development model, the content of the available relevant documents were analyzed. Reliability and validity of research findings and study results have been tested using Delphi method. Eventually, a model for Iranian – Islamic development has been offered on the basis of study results which includes three strategies, four packages consisting of 15 executive measures (as independent variables), 17 ad-hoc results, five outcomes of ad-hoc results, seven sectoral goals (as dependent variables) and six development dimensions along with final goals of development.