This paper examines the challenges in implementing the Resource Description and Access in bibliographic records and library software. To meet this end, a survey approach was employed, and a questionnaire was used to collect the data. The statistical sample size was determined as 95 librarians from Tehran University, 48 librarians from Allameh Tabataba’i University, and 35 librarians from Tarbiat Modares University. According to the results, the respondents believe that the main problems for implementing RDA in academic libraries in Iran are, in turn: “problems in switching to new library software", "problems of not having enough information and knowledge to implement RDA", "problems in the internal communication of libraries", "data incompatibility", "lack of a trustee to apply the RDA rules", and "problem with library users". Therefore, using a correspondence table and designing a comprehensive manual in library software is needed to guide the librarians and catalogers in implementing RDA.