Many researchers note that mental disorders can be understood as maladaptive attempts to avoid aversive internal experiences, and propose that a functional approach is required to complement topographical classification. Approaches that are based on the function of behavior can identify basic processes for the development of interventions. From this perspective, communication difficulties can be seen as strategies that are based on avoidance that increase distress. Among these problems are problems understanding metaphors, humor, and irony. Relational Frame Theory (RFT) offers a functional framework from which to analyze these processes. All this is the basis of the interventions that are aimed at promoting more adaptive behavior patterns. Moreover, individuals with Social (Pragmatic) Communication Disorder (SPCD) often exhibit impairments in perspective-taking, which RFT interventions aim to address by developing relational framing skills and social cognition. This paper proposes a functional approach and a theoretical framework for understanding interventions in SPCD through RFT.