Rhythmic gymnastics is started from preschool age. Despite the fact that the performances of gymnasts give the impression of lightness and grace, athletes from a young age perform some of the most complex technical elements in their programs, which is the result of systematic training. Therefore, purposeful preparation for admission to the groups of initial training in rhythmic gymnastics is necessary. The study was conducted in Yekaterinburg at the sports school “Victoria” for seven months. It was attended by girls 5-6 years old. A training methodology was developed and introduced into the training process, consisting of tools and methods that were not used earlier. These tools and methods are combined into three blocks: developing (using rubber and a belt for stretching, cubes for fitness, tennis balls and clubs), cognitive (determining the mood at the beginning and end of training, watching videos of performances of titled gymnasts and telling about their achievements) and gaming (using new outdoor games), they helped to increase physical fitness and improve the emotional state of athletes. As a result of the study, it was revealed that the introduction of the training methodology into the training process led to an improvement in physical fitness at the first stage according to such tests as: saddle, bridge from standing position, bridge on knees, transverse twine, rope rotation, jumping rope, fold. At the end of the experiment, improvement was observed in all tests. The revealed reliability of the increase in the studied indicators confirmed the effectiveness of the developed methodology.