Introduction. A large number of building materials is used for construction of buildings and structures, the reinforced concrete is being one of them. It has the leading position when choosing the material for construction of buildings and structures. However, like any other material, the reinforced concrete has its disadvantages: apart from considerable weight of the reinforced concrete structures, the impossibility to cover with them the large spans can also be referred to disadvantages, as the increase of structures’ spans impairs the economic efficiency of using the reinforced concrete. To handle this, engineers have developed the technology of steel reinforcement prestressing. Thanks to prestressed reinforcement, it has become possible to increase the spans and reduce the cross section of the reinforced concrete structures. This scientific paper investigates the technology of steel reinforcement post-tensioning.Materials and Methods. The materials for the research were obtained from the available scientific editions, articles, journals and Internet blogs. The documents’ content analysis method was used to write the article. In the course of the research, it is planned to find the information about the post-tensioning technology. The object of the study is the steel wire-rope post-tensioning.Results. Thanks to the research, the data on the history of origin of the reinforcement prestressing technology was obtained and the advantages and disadvantages of post-tensioning were analysed.Discussion and Conclusions. After the research, the data on the technology of steel reinforcement post-tensioning was obtained, the application of the technology in Russia in the construction of industrial and civil facilities was considered. This technology allows increasing the spans and reducing the cross section of the reinforced concrete structures.