Autism spectrum disorder(ASD) is a neurodevelopmental disorder characterized by unclear etiology and a lack of effective treatments. Early screening and intervention represent viable strategies for mitigating the adverse consequences.Through literature research and policy analysis, this study examines the current status of assessment and intervention for ASD children in China based on the Lancet report "Future Care and Clinical Research on Autism" published in 2021, providing important evidence to promote the standardized development of early identification, assessment, and intervention forASD children in China. Our findings indicate that policies and guidelines for screening and intervention of ASD children have improved gradually, service models have been established, and scientific research has been strengthened. However, there remains significant scope for enhancement in the social support environment, the screening and intervention service system, the standardization of assessment tools, and cross-sectoral cooperation.In resporse to current situation and problems, the following countermeasures are proposed: improving the social environment to foster the social integration of autistic children; refining the service system to establish a screening and intervention model tailored to Chinese characteristics; standardizing assessment tools to enhance the quality of autism screening and diagnosis; and strengthening cross-sectoral cooperation to regulate the autism screening intervention network.