Abstract Background : Social responsibility is one of the important components in professional ethics and as to the role of banks in economic system; social responsibility of banks includes strategic results for companies. Therefore, in the current research, effective factors and causes on social responsibility in business banks of Iran are studied. Methodology. The current research was qualitative. The statistical society was two parts. The first part included marketing and financial experts of banks, professionals, managers and supervisors of districts and experts of governmental and nongovernmental business banks and the second part included bank stakeholders which among them, 18 persons were chosen as sample by snowball method and reaching to saturation. Data collection tool is deep interview. Finally, data were analyzed by method of content analysis and coding and using 2020 Max QDA software. Findings : Based on the obtained results in relation with effective factors on social responsibility of banks by method of content analysis, 3 categories, 12 concepts and 45 secondary codes were identified. Conclusion : As to the research findings, it is recommended to constitute special work groups to expand and develop social responsibility to investigate and impart favorable approaches. Abstract Background : Social responsibility is one of the important components in professional ethics and as to the role of banks in economic system; social responsibility of banks includes strategic results for companies. Therefore, in the current research, effective factors and causes on social responsibility in business banks of Iran are studied. Methodology. The current research was qualitative. The statistical society was two parts. The first part included marketing and financial experts of banks, professionals, managers and supervisors of districts and experts of governmental and nongovernmental business banks and the second part included bank stakeholders which among them, 18 persons were chosen as sample by snowball method and reaching to saturation. Data collection tool is deep interview. Finally, data were analyzed by method of content analysis and coding and using 2020 Max QDA software. Findings : Based on the obtained results in relation with effective factors on social responsibility of banks by method of content analysis, 3 categories, 12 concepts and 45 secondary codes were identified. Conclusion : As to the research findings, it is recommended to constitute special work groups to expand and develop social responsibility to investigate and impart favorable approaches. Article number: 2