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Objective: To analyze the disease burden and trend of attention deficit hyperactivity disorder (ADHD) in China from 1990 to 2019, so as to provide the basic theoretical basis for the health administrative departments to formulate policies. Methods: Using the 2019 Global Burden of Disease Database, the incidence, prevalence and disability adjusted life year (DALY) rates of ADHD were analyzed for both sex and different age groups, and the trends of ADHD were predicted. Results: In 2019, the incidence, prevalence and DALY rate of ADHD in China were 70.41/100 000, 1 546.15/100 000 and 18.87/100 000 respectively. Compared with 1990, the rates decreased by 27.30%, 25.35% and 55.80% respectively, and these rates of females were lower than those of males. In 2019, the incidence rate of ADHD was the highest in the age group 5-9 years old (837.76/100 000), while the highest prevalence and DALY rates were found in ages groups of 10-14 years old (5 740.47/100 000 and 70.49/100 000). The results of the Joinpoint regression model showed that the incidence, prevalence and DALY rate had a downward trend from 1990 to 2019. The AAPC was -1.35%, -1.16% and -1.16%, respectively, with a statistically significant difference ( P <0.05). The prediction results of grey prediction model GM (1,1) indicated that the incidence and prevalence rate of ADHD in China would decline from 2020 to 2030. Conclusion The burden of ADHD in China showed a decreasing trend from 1990 to 2019, indicating that the prevention and treatment effect of ADHD in children and adolescents of China was effective. China should take active preventive measures to reduce the burden of ADHD in children and adolescents.