The scientific archives of the Historical museum of Sliven are replenished with documents which have been made as a result of the research, exhibition, educational and popularizing activities of the museum. the archives are filled with documents resulting from the leading role of the Historical Museum of Sliven, structural and thematic plans and projects for the artistic display of the exhibitions in the museums. There are monographs reports, articles, lectures, thematic and survey discussions, methodological rules of museum work, programs, projects, reports on the different tendencies of museum work. There is a number of documents from the scientific processing and registration of cultural monuments, scientific documentation of field work, scientific and popular publications.
A specialist in that section compiles and processes the scientific archives, together with taking an active part in the research work, displays, exhibitions and educational activities of the museum.