Based on multimodal hybrid brain computer interface technology, non-invasive brain function signals are used as non subjective, targeted, and quantitative biomarkers to assist doctors in quickly achieving early screening, diagnostic analysis, and rehabilitation effect evaluation of suspected children with brain function development disorders. This solves pain points such as the shortage of professional doctors, low diagnosis and treatment efficiency, lack of objective evaluation, and significant individual differences, and improves the scientific and standardized level of screening and intervention services for pediatric brain dysfunction diseases in China, meeting the practical needs of grassroots health and medical institutions, public hospitals, special education schools, professional rehabilitation institutions, and community home care.