Objective: To develop a native adaptive behavior scale for children with autism spectrum disorder(ASD) and to explore its reliability and validity. Methods: Items of ASD adaptive behavior rating scale were selected based on the scale development theory, ASD knowledge and adaptive behavior concept through preliminary survey and statistical, and 301 ASD children aged 2 to 12 from hospitals in Guangzhou, Huizhou, Shenzhen who met the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition were selected, data was analyzed by the item analysis. Results: After item analysis and exploratory factor analysis, the final version of the scale contains 58 items, and 64.24% of the total variation could be explained by 6 factors; The Cronbach’s α coefficient of the full scale was 0.98, and the coefficient value of dimen sional factors were 0.94，0.93，0.91，0.95，0.88，0.94. The test-test reliability r of full scale was 0.86, the r of the factor were 0.88，0.81，0.81，0.87，0.88，0.79. The criterion-related validity r with the ABAS-Ⅱ scale was -0.77, the criterion-related validity r with the CARS scale was 0.64. Conclusion The ASD Child Adaptive Behavior Scale showed good reliability and validity, and could be used widely.