The article describes the main aspects of conducting a pedagogical experiment, aimed at testing the effectiveness of selected and well-grounded pedagogical conditions, models, and methods of forming the computer science competence of future teachers of vocational training. Theoretical analysis of scientific and methodological literature, as well as the purpose and the hypothesis, are formulated, which provide an opportunity to achieve a sufficient level of formation of computer-science competence of future teachers of vocational training during the implementation of specific pedagogical conditions. The experimental factor, the dependent variable, the partial dependent variables, as well as the tasks of the experimental study are determined. The article describes the organizational and methodological process and the results, obtained at the control stage of the pedagogical experiment during determining the level of formation of computer competence of future teachers of professional training of the experimental and control groups.