The present paper is a meta-synthesis study on the research and technology budget areas in Iran with the aim of comprehensive and holistic diagnosis. The statistic of the present paper consists of 96 documents, including research papers, review papers, reports and research projects which have been published in Persian during the years 2002-2019. In this study, Sandlowski and Barroso's seven-step method was used, and after screening by helping the COREQ 32-item index, 69 documents were identified as high-quality and medium-quality research for deeper analysis, and they have been reviewed in the two sections of descriptive and qualitative. The themes were analyzed and extracted from the articles and final findings using the theme analysis method. The results showed that the barriers to implementation of research and technology budgeting consisted of 139 main factors and obstacles in 19 components (sub themes) in 5 dimensions (Main theme) includes science and technology policy making, budget planning, budget approval, budget execution and budget monitoring.