Introduction. High incidence and great social significance of attention deficit hyperactivity disorder (ADHD) in preschool children determines the search and development of new options for their rehabilitation.Aim. To analyse the patient outcomes of the most up-to-date treatment and rehabilitation complex (biofeedback, sensory integration, psychological and speech, physiotherapeutic effects) and the possibility of its widespread practical application for the rehabilitation of preschool children with ADHD.Materials and methods. A total of 63 children (33 boys and 30 girls) aged 5–8 years were included in the prospective study. Patients were divided into two groups: Group I – 34 children aged 5 years – 5 years 11 months, 29 days with ADHD, and Group II – 29 children aged 6 years – 6 years 11 months, 29 days with ADHD. The follow-up period for each patient was 15 months. The children were examined by a neurologist, rehabilitation therapist, neuropsychologist, and speech pathologist with an assessment of active attention measures using the B. Bourdon scale for children of Group I and the Toulouse-Pieron scale (adapted by L.A. Yasyukova) for children of Group 2. Parents were surveyed and questioned using special questionnaires.Results. Before initiation of treatment, all children were diagnosed with active attention disorders of isolated (26.5 and 23.8%) and mixed (73.5 and 62.5%) nature in Groups I and II, respectively. After the rehabilitation activities complex was provided, a significant decrease in not only isolated, but also mixed attention disorders in children with ADHD was detected in both groups. Evaluation of electroencephalograms after the rehabilitation activities complex showed a decrease of theta power and an increase of low beta frequency power in 18.7% of children of Group I and in 16.2% of children of Group II, which indicated an improvement in neurodynamic functions and sufficient cognitive potential in that cohort of children.Conclusion. Early start and prolonged use of the proposed rehabilitation complex will enhance learning ability and prevent school and social maladjustment of children with ADHD.