The Mermaid Training Camp is a participatory training course for RTT family. Training camp from the biomedical, feeding care, motor development, communication &cognition, psychological construction, set up more than 42 courses for children and parents, including knowledge of the disease, the development of intervention programs to provide one-on-one practical guidance. Let the RTT parents learn the knowledge of the disease, including the four stages of development and the characteristics of the four stages of development, sleep, mood, gastrointestinal, respiratory problems, and possible treatment, healing methods to rationally build confidence; Professional assessment, and based on the assessment of the development plan, access to the child's personalized feeding care, motor skill development,communication intervention and other aspects of the plan, as well as parents of learning, training, capacity development plan; Through one-on-one practice guide, take rehabilitation program home, to carry out lasting and effective rehabilitation.