During my studies as well as my work with children with Autism Spectrum Disorder ASD, I have heard a lot about ABA, the behavioral approach several times, especially during my basic psychomotor training. As a result, this thesis work is in line with the psychomotor management of children with ASD through the ABA approach, using ABA procedures. ABA, Applied Behavior Analysis, has for objective: to improve the conditions of life of the person. To achieve this objective, three axes are considered: Increase adapted behaviors, decrease maladaptive behaviors, learn new adapted behaviors. This approach has proven its effectiveness in ASD, geriatrics, sports, business and education... In psychomotricity, it is still very little used, despite the fact that psychomotricity is a profession that uses several tools and mediations. This work presents two cases in which ABA procedures were used to maintain psychomotor skills. The combination of psychomotricity and the ABA approach, through the use of its principles (reinforcement, punishment, extinction, error-free teaching,...) contributed to an improvement of the target behaviors, which shows the interest of using the ABA approach in psychomotor care.