Control, as an organic component of the basketball players training, provides management of this process and is a factor of its effectiveness. When the fact that control of basketball players speed-strength abilities requires absolutely precise and effective methods of their diagnostics was taken into account, it was determined the necessity of effective control techniques search for obtaining reliable information on the state of basketball players speed-strength abilities. To solve those problems we used methods of analysis and synthesis, analogy, abstraction, formalization, technical modeling and mathematical statistics. The main idea of the research was to intensify the control process of the basketball players speed and strength abilities. For this purpose, we propose to apply our device to determine the speed-strength abilities level development. Along with the definition the distances time overcoming, other important characteristic of the basketball players speed-strength abilities are calculated with use of the mathematical statistics methods. Modified control method for the speed-strength abilities of basketball players was proposed for the first time. Its use contributes increasing of the control effectiveness of the basketball players speed and strength abilities by operative and effective analysis and interpretation of quantitative testing information.