The main purpose of this study is to determine the level of use of primary sources in the 6th Grade Social Studies Course Books. The "document analysis" method from among the qualitative research methods was used in the study. The study was conducted on 4 books from among the Social Studies course books published by total of 6 Publishing Houses accredited by the Republic of Turkey Ministry of National Education Head Council of Education and Morality. The "Primary Source Utilization List", which was prepared based on the literature review carried out by the researchers, was used for data collection. The research data were analyzed descriptively in the form of frequency on the basis of these criteria and research questions. The findings were interpreted with supporting examples from the relevant course books. According to the results obtained at the end of the study, the image sources were used the most and the audio and the community sources the least in all course books. In terms of the fields of learning, the field in which the primary sources are used the most was the "Turks on the Silk Road". (Contains 2 tables and 6 figures.)