In this article the authors present the results from the study conducted on the observation of training 5-6 year-old girls in recreational-therapeutic swimming. Study objective determination of comparable results on the recreational-therapeutic swimming in 5-6-year-old girls. Methods and materials included four tests - Four available simultaneous continuous loads for 48 ± 3 (first testing) and 96 ± 2 (second testing) in recreational and therapeutic swimming. (LOTUS WATER ENERGY Web site [Internet]. Chisinau (MD): LOTUS WATER ENERGY SRL; [cited 2019 Jan] Available from: http://www.lotuslife.md/. We tested 21 girls, aged 5-6 year-old, which belonged to the main group and were engaged in the second program, 45 minutes, lessons per week. The testing took place on 01.12.2018 and 02.05.2019. The results of the study allowed to conceptualize the curriculum of training and the didactic content of swimming lessons for 5-6 year-old girls, according to which we managed to form certain swimming competences and qualities. A comparative analysis of the conjugate selection of indicators revealed that the results in the second test were higher for an arbitrary breath-hold (t = 5,088 with P <0,001), swimming 7 meters on the chest, leg crawl, hands on a noodle, arbitrary breathing (t = 1,004 with Р>0,05), in swimming 7 meters under water, breaststroke, leg crawl, arbitrary breathing (t = 3,73 with P <0,001), in swimming 7 meters on the back, hands behind the head on a noodle (t = 5,21 at P <0,001). The results obtained determined the following conclusions: the content and duration of the training system in the study can perform the functions of individual initial training in recreational and therapeutic swimming for 5-6 year-old girls; to achieve significant results in recreational and therapeutic swimming for 5-6 year-old girls, 48 ± 3 individual lessons are needed, and for reliable results that conclude a formative effect, 96 ± 2 lessons in the second system, 45 minute, lessons per week are sufficient.