This article discusses the historical role and importance of museum and library institutions, describes the history of their evolution and the current state. Their influence on the increase of cultural, educational and information level of pupils' knowledge is defined. Museum and library pedagogies are independent branches of the complex of sciences on education in general, and pedagogical science in particular. The purpose of this study is the leading problem of the formation of cultural, informational and educational potential by means of museum pedagogy and library activities. It is revealed that methodological, methodical and applied basis of the development of cultural and educational space organically combined fundamental principles of theoretical pedagogy, philosophy of education, history, culturology, art-criticism, and specifics of library and museum information environment. It is determined that museum and library pedagogies as segments of scientific humanities were formed by taking into account the peculiarities of the development of the modern cultural and socio-economic situation. It is established that the open subject-spatial environment is formed on the basis of methodological, paradigm, cultural and civilization interaction. Currently, the important problem is a meaningful interaction with the objects of spiritual heritage, as well as constantly updated modern information environment. The question of scientific representation of information and cultural and educational potential of museum and library institutions is considered. Thus, through the acquisition and assimilation of new developmental ideas about environment and by means of specialized cultural (museum and library) communication, certain creative, innovative, stimulating and recreational effects are achieved. https://dx.