The creation of the Early Intervention Service as a structural unit of educational, medical or social welfare institutions in the Chuvash republic territory is especially in demand due to the preservation of the number of children with disabilities. The article discusses a model for constructing an early intervention system in the Chuvash Republic in terms of vertical and horizontal structure. The vector of work of the Early Intervention Service is the consolidation of the professional forces of principals and employees of educational institutions, organizations of the social protection and health care system, socially oriented nonprofit organizations, nongovernmental organizations and public associations. An interdisciplinary team that provides early intervention to clients of the target group, includes, as equal partners, representatives of the Orthodox, secular and professional community of various Ministries and departments, and the parent community. The content of the Early Intervention Service is the implementation of a comprehensive system of medical-psychological and socialpedagogical support for young children with disabilities and their parents, creation of a new active environment with high adaptive potential in the social space. This environment should activate inter-subjective (communication, patronage, cooperation), intra-subjective (resilience, semantic disposition) and non-subjective (sociocultural and physical environment) potentials and development resources of each subject included in the activities of the Early Intervention Service (children with disabilities, their parents, specialists). A generalization of the experience of the activities of the Early Intervention Services, organized and functioning on the territory of the Chuvash Republic made it possible to identify complex-parallel, sequentially-integrative, complex-collegial and collegiallyintegrative options for the implementation of integrated support. It has been established that the comprehensive-collegial and collegial-integrative options most fully meet modern requirements for organizing comprehensive support for the development process of children with disabilities and their parents in the Early Intervention Service. The purpose of this study was to study a regional version of the organization and functioning of the Early Intervention Service in the Chuvash Republic, models for the provision of comprehensive specialized medical, social, clinical, psychological, pedagogical support for atypical children and their parents.