Background and Aim: Today, living in the cities requires mutual understanding of collective and urban life, mutual rights, duties of citizens and observance of citizenship ethics. Therefore, the purpose of this study is to do a meta-analysis of the factors affecting adherence to citizenship ethics among Iranian citizens. Materials and Methods: The research method is a meta-analysis and its statistical population includes articles and dissertations on the subject of citizenship ethics in Iran during 2001-11 in Iran Research Institute of Information Science and Technology database, Islamic World Science Citation Database, Iranian Publications Database and Information Center of Jahad Dneshgahi. The sampling was conducted after passing the phases of Identification, screening, competency and inclusion and finally 20 studies were selected as sample of the study. After coding and systematic review, Comprehensive meta-analysis software (CMA2) was used to analyze the collected information. Findings: Lack of standard scales, using different and diverse components to measure citizenship ethics, non-measuring the creditability of the structures of the designed scales, providing general, vague and non-practical solutions are identified as the most important weaknesses of the research in this field. The most important variables affecting individuals' adherence to citizenship ethics includes citizens' perceptions of their usefulness, social commitment, adherence to the normative system, social capital, education, individual perceptions of collective monitoring, mass media and citizenship education. Ethical Considerations: By referring to the researches, scientific fidelity has been observed. Conclusion: To increase the items like citizenship ethics, social commitment, adherence to the normative and value system of society, promotion of social capital, citizens' perception of their usefulness, individual perception of collective monitoring and citizenship education should be considered by the planners and policymakers.