The existential philosophy of the National Development Fund, based on the approved statute, is to convert a part of the revenues from the sale of oil and gas, gas condensates, and petroleum products into lasting, productive wealth and economic generative capitals, as well as preserving the share of future generations from these national resources. This important responsibility of the Fund has been increased in the last decade because of the imposition of sanctions by the United Nations Security Council, credit crunch, freezing of bank assets, and the increasing limitations of investable resources in the country. And any effective review and action that can increase these limited resources towards valuable investment is of vital importance in securing national and intergenerational benefits in the short and long term. This study, adopting a descriptive-analytical method of the statistical population of macroeconomic variables of the country and the performance of the National Development Fund in the last decade, seeks to introduce a suitable method for fund investment with the aim of realizing real investment and maximizing national benefits. The results of this research show that the resources of the National Development Fund have faced a fundamental challenge with inappropriate policies in the form of depositing in banks and neglecting the main mission of the fund in intergenerational wealth creation. By taking advantage of the legal partnership contract, the National Development Fund can have the highest benefits by creating wealth in the national and international arenas, especially in the country's breakthrough projects, while realizing real partnership with its partners and protecting people's rights, a subject that has been examined in different parts of the present article and for which an operational model has been presented.