Objectives The aim of the conducted research is to assess the effectiveness of the SAPL method in improving the social functioning of a child with mild intellectual disability. The results of the study can provide valuable information, for educators and therapists involved in supporting child development, highlighting the potential of this method in supporting the social integration of children with intellectual disabilities. Material and methods The study used triangulation of research methods – qualitative field research in the form of a case study and a diagnostic survey method. The first method, a case study, was implemented based on the test of auditory attention and lateralization. The second method was a diagnostic survey conducted using the direct interview technique based on an original research tool in the form of an interview questionnaire. Results The research results suggest that the Alfred Tomatis’ SAPL method can be effective in the therapy of people with emotional and social problems, including people with mild intellectual disabilities. The research results clearly indicate that APPL positively supports the child's social behavior in the area of verbal and non-verbal communication. It fosters the development of emotional self-regulation skills, improves concentration, and influences the development of empathy, which leads to deeper interpersonal relationships. Conclusions The results of the study can provide valuable information for practitioners and educators, pointing out the potential of APPL method in the process of supporting the social integration of children with disabilities. It can provide valuable support for the social development of children with mild intellectual disabilities, which is crucial for proper functioning in society.