The author reviews the history of Russian central sci-tech library in 1918-1919. During this period, the library was called The State Scientific Technical and Economic Library (SSTEL) and was part of the Sci-tech Department of the Supreme Council of National Economy of the Russian Soviet Federative Socialist Republic. Further, in 1927-1958, this largest library organization was called The State Scientific Library. It became the foundation to the Russian National Public Library for Science and Technology and State Public Scientific & Technological Library of the Russian Academy of Sciences Siberian Branch. The author analyzes the pool of the government and departmental solutions that laid the basis for the Library; he also describes organization process, and reviews personal contributions of librarians to the initial library organization and collection development. He characterizes the first SSTEL leaders and librarians (M.L. Milshtein, Karl F. Gessel, Nikolay N. Orlov). In particular, he emphasizes the outstanding contribution by Nikolay P. Gorbunov (former assistant to Vladimir Lenin, later an academic). At the initial stages, two well-stocked public libraries were merged into SSTEL, namely the Society for Advancement of Experimental Sciences and Their Practical Applications named by H.S. Ledentsov (and its specialized library building) and Moscow Technical Library of the Polytechnic Society. The author concludes that the efforts of librarians and scholars in the Supreme Council of National Economy made it possible to establish the central national sci-tech library and get it off the ground during the hardest years of the Civil War.