Background: According to the importance of sport in society and its conducting by Sport organizations, it is expected that professional ethics be emphasized in these organizations. So, the purpose of present study was to provide a model for professional ethics development in sport organizations.

Method: This study is an applicable survey. Populations of study were all scientific board members of sport management department, managers in ministry of sport and youth, and sport federations, among all 241 people were selected as sample. The tool of study was a researcher made questionnaire. Data were analyzed by SPSS and LISREL through confirmatory factor analysis.

Results: Professional ethics development model in sport organizations was confirmed in 31 criteria and 5 factors including managerial, personal, ethical, financial, and educational factors.

Conclusion: Using expert and educated staff, planning and performing training courses about professional ethics criteria, improving belief capacity of staff and managers, and controlling and directing huge commercial investments are introduced as the most important indices of professional ethics development in sport organizations.