This article presents the findings of a study of applicability of fiberglass dowels for reinforcement of soil slopes and downhills in geological conditions of the Greater Sochi. Within the framework of the performed surveyes, the analysis of the data array on engineering-geological conditions has been executed, physical- and mechanical properties of soil properties for the Greater Sochi have been defined. According to the results of mathematical modeling in the software complex PLAXIS, applicability of using fiberglass dowels and its scope of application has been determined. Economic efficiency in comparison with the widely-used soil dowels Titanium has been herein estimated.According to the survey findings multiple landslide areas with surficial character of formation, which currently do not threaten the safety of human life, are identified. However, lack of timely measures on fixation of the above said slope areas may lead to the development of global deformations.