Sport trainings are based on two essential components: the preparatory process and the athlete’s level of training as the result of the training process. The most important task of the coach is to find the most efficient way how to prepare an athlete so that he would achieve the highest capacity and would be able to implement it. Application of cranial electrical stimulation in sport is not fully explored. The aim of the study was to determine the influence of cranial electrical stimulation on the strength parameter indicators of fitness athletes who use weightlifting tools. In the study participated 15 men (representatives of fitness sport, of Latvian Academy of Sport Education, who use weightlifting tools in the training process). The age of these athletes was 20 ± 3 years. The average weight of the athletes was 80 ± 3.1 kg and the average height was 176 ± 11.3 cm. An exercise set "lifting a weight bar to the chest" was developed. A 10 minute session of cranial electrical stimulation was applied. During the test a weightlifting bar of the company "Eleiko" was used and FiTRO Dyne Premium cable was attached on one end of the bar which was connected to a computer system and registered the data obtained during the control exercise performance. During the experiment the results obtained during two tries of control exercise performance were compared, which are the difference between the average strength parameters and the difference between the maximum strength parameters before the application of cranial electrical stimulation (hereinafter – CES), performing the first three repetitions, comparing them to the last three repetitions performed after the application of the stimulation. After cranial electrical stimulation the maximum strength parameters improved by 533.23 ± 11.09 N (α<0.05). Fitness sport representatives and coaches, in order to improve the level of training of their student, must pay attention to the application of CES in the training process with weightlifting tools.