Introduction:  Achieving a healthy society was one of the ideals of every human society. Achieving this important goal and achieving health in communities depends on the participation of health elites and trustees in health decision-making and policy-making. Because the elites of any society was the creators and drivers of great changes.
Methods: this qualitative research has been conducted with the ultimate goal of designing a model of participation of elites and trustees in the field of health (studied by Iran Health Insurance) with the data method of the foundation. For this purpose, while conducting open interviews with 8 university professors in the field of management and 15 elites and trustees in the field of health and paying attention to the concepts of participation and decision making, a set of basic themes (855 themes) were collected during the coding process. And categories (15 categories) were extracted from their hearts.
Results: In the axial coding stage, the link between these categories is under the headings of causal conditions (weakness in policy-making, weakness in laws and supervision, financial problems, payment system), axial phenomenon (need for mechanisms for attracting and using elites and trustees), action strategies and Interaction (participation of elites and trustees in the field of health), context (preparation of infrastructure, design of financial and legal mechanisms, formation of policy room), intervening conditions (problems of inter-sectoral communication and culture-building-management-infrastructure-organizational conditions) And the consequences of elite participation (design and establishment of elite participation model- value creation and attention to the experience, skills and expertise of elites- organizational development and increase of efficiency and effectiveness-welcoming elite plans and solutions-creating identity and patriotism among elites - Preventing brain drain, realizing the vision and missions of the organization) was determined in the form of coding paradigm, then the components of the coding paradigm were described, the storyline was drawn and theory was created.
Conclusion: The findings showed that strategic purchasing has the greatest impact on the participation of elites and trustees and also increase the motivation of elites and trustees to participate in decisions; some characteristics and special conditions of this phenomenon are provided.