Nowadays, the problem of prevention and correction of various diseases in preschool children has become particularly relevant. This is due, first of all, the presence of a large number of preschoolers (84.9%) with different deviations in the state of health and with pathologies in the development of the musculoskeletal system in particular. The problem of studying the psychological characteristics of preschool children with orthopedic diseases seems to be quite relevant, although in contemporary scientific literature this issue has not been adequately reflected. The aim of the research is to identify the psychological characteristics of children of preschool age with a diagnosis of "flat feet" with the help of projective methods. The study was conducted among pupils of preschool educational institutions in Moscow, who are diagnosed with "flat feet" and conditionally healthy children (SWAD, WAD). The average age of the subjects was 6 years. As a result of the research, it has been found that children with a diagnosis of "flat feet", already in preschool age have certain changes in the emotional sphere, especially an increased level of anxiety and fear.