The formation of the educational and cognitive interest of children, the development of their activity is one of the most pressing problems of today. After all, immersion in a new environment, meeting new people, communicating with them can be different for each child. Children attending school can make a difference in their lives. Therefore, the article touched upon the issues of determining the psychological and physiological readiness of children for school. When determining the child's readiness for school, the research work used the methods of observation and conversation. Here, games were observed that determine the development of children, the method of conversation was used to determine the readiness of children for school, and methods of quantitative and qualitative analysis were used to summarize the results. As a result of the study, the difficulties that arise when children attend school, the shortcomings of psychological and physiological development are revealed. When preparing a child for school, the activities of not only the teacher, but also parents and family members are very important. Physiological training is the ability to perform certain physical activities that are considered necessary for a certain age. It depends on the child's health, physique, height and weight standards, speed and agility of movements