The subject of this paper is the application of positive psychology in working with children with ADHD. It is a disorder whose etiology has not been fully clarified, and which is characterized by symptoms of hyperactivity and/or attention deficit. The disorder can be treated with psychological treatments with or without drug therapy, and it is also possible to apply various alternative treatments. Children with ADHD can be helped by educators themselves by applying positive psychology. In this way, symptoms of depression can be prevented or at least reduced, the well-being of children with ADHD can be improved and their learning can be enhanced. Positive psychology is a branch of psychology that investigates optimal individual functioning and focuses on the positive aspects of that functioning. Constructs of positive psychology are positive states, positive individual, positive relationships and positive community. Educators can use simple techniques to encourage the development of positive way of thinking in children with ADHD and strive to always put the positive before the negative and to reward all the positive behavior they observe in children with ADHD. With the aim of adequate work with children with ADHD and the application of positive psychology in working with these children, it is necessary to train educators and encourage them to acquire additional competencies. Likewise, cooperation with the child's parents and professional support in the institution of early and preschool education is necessary.