Pervasive developmental disorders are a series of illnesses characterized by delays in the development of some basic functions, such as the ability to communicate and socialize, but also through a small number of interests or activities, and according to ICD-10 (1996), in this category can include childhood autism, where deficiencies at these levels are identified, being identified until the age of three years or atypical autism - common in people with mental retardation or with responsive language disorders. A form of alternative therapy focused on these dimensions is horse-therapy therapy, a rapidly expanding approach in recent years, both with the aim of empirical substantiation and implementation of its different application centers to alleviate psychomotor deficiencies and emotional. This study aims to analyze the results obtained from horse-assisted therapy on psychomotor disorders in children with autistic spectrum disorders, epilepsy, ADHD or cerebral palsy. A group of 64 children aged between 2 and 14 years, biological age, participated in the study. 41 children were part of the study group, 23 constituting the control group. A controlled research model with pretest-posttest measurements was used. The effect of horse therapy on adaptive skills was evaluated. The ABAS II Adaptive Behavior Assessment System was used to measure these skills. The results indicate that hypothyroid therapy is effective in increasing the adaptability of children with psychomotor disorders.