Civil society, as one of the main pillars of democracy, plays a fundamental role in expanding political participation and creating transparency in rentier states. In rentier states, the state's dependence on natural resources such as oil and gas reduces the need for public accountability and public participation, which leads to the concentration of power, the spread of corruption, and a decrease in transparency. However, civil society can strengthen political participation and democratic processes by strengthening political awareness, supporting citizen rights, monitoring government performance, and creating a space for dialogue. This study examines the challenges of civil society in rentier states, including legal restrictions, repression of civil activists, lack of independent institutions, and economic dependence of the people on the government, and also considers the opportunities available to strengthen the role of civil society. This study, with a descriptive-analytical approach, seeks to answer the fundamental question of what role does civil society play in political participation and democracy in rentier states? This research emphasizes that rentier governments, by earning income from natural resources and gifts, imagine themselves as not needing citizen participation in various areas of governance, including politics, economics, culture, etc. ; and they take steps to reduce accountability to citizens and lack a sense of need for their participation, which ultimately leads to citizens distancing themselves from participating in determining their own destiny, weakening democracy, and the rise of governments with totalitarian government structures that pay little attention to the relationship between citizens and the government, creating serious challenges in society.