The article presents the author's own practical experience and description of experimental work with children with complex disorders (autism, ADHD, intellectual disability, Down syndrome, childhood schizophrenia, cerebral palsy). The author has created his own method of forming the social competence of children with complex developmental disorders, implemented as part of an experiment within a rehabilitation institution. The essence and advantages of social larping are defined. The scientific studies related to the research topic are briefly reviewed. The method of forming social competence for autistic children - Creative drama - is analysed. A comparative analysis of the method of "live" game LARP and Creative drama is carried out. The concept of "social larping" is defined for the first time. The criteria and indicators of the level of formation of the social competence of children with complex developmental disorders are outlined (cognitive: knowledge of ways of behaviour, rights and responsibilities; basic ideas and knowledge to meet their own needs; knowledge of ways of social interaction; emotional and motivational: understanding of emotions, self-control skills (self-esteem), social values; behavioural: social interaction, orientation in social roles, social skills). The descriptive characteristics of the levels of formation of the social competence of children with complex developmental disorders in accordance with the above criteria are provided.
 The importance of introducing social larping as an author's method of forming the social competence of children with complex developmental disorders within the correctional and developmental work of rehabilitation institutions is proved. The impact of social larping on improving the interaction between children with complex developmental disorders within a mini-group, catching up with the child's own social experience in a rehabilitation centre is analysed.
 The conclusions and suggestions demonstrate the essence and advantages of social larping as a method of forming the social competence of children with SCD, as well as the effectiveness of its implementation