The shift in emphasis from the motor sphere to the mental, psycho-emotional sphere leads to a decrease in the natural motor activity of the younger schoolchild, which actualizes the development of the functional and body adaptive capabilities by means of motor activity. In this regard, the formation of independence for physical education is one of the most important problems in Kazakhstani primary school. Therefore, this research has been undertaken to study: (a) the state of work of the country's general education schools in the formation of independence skills in junior schoolchildren; (b) the essence and features for the formation of the independence skill in younger schoolchildren through general developing exercises in physical education lessons; and (c) to propose measures that ensure the effectiveness of the physical education process in primary school to improve the physical fitness of schoolchildren, the formation of their motivation for independent physical education. The revealed results showed that the real experience for organizing physical education of schoolchildren in primary school is not effective enough. The present study points to the beneficial effect of general developing exercises on the physical development of children, especially on the development effectiveness of the independence of schoolchildren and their need for systematic physical exercise.