The article examines Uzbekistan's legislation, practices, international standards, and foreign experiences regarding the study of public opinion by civil society institutions in the prevention of corruption. The research aims to improve the legal framework of this process and eliminate existing shortcomings. The study reveals that the concept of "public opinion research" in national legislation requires refinement, noting that its forms and tools are often applied inaccurately. Using analytical, functional, structural, comparative, and formal-legal methods, the author analyzes perspectives, practices, and legislative acts concerning public opinion. As a result, the essence of public opinion and its research methodology are clarified. The author justifies the need to establish general rules for this process within national legislation, including the mandatory disclosure of information to assess the quality and objectivity of such research. Furthermore, the author proposes assigning the development of methodological recommendations for public opinion research to the Association of Sociologists of Uzbekistan and the Central Election Commission, while tasking election commissions with monitoring compliance with these recommendations and legal norms.