Neurological disease contributes significantly to morbidity and mortality in different ages and geographic areas around the world. The purpose of the current study was to investigate the incidence and disability-adjusted life years (DALYs) trend of neurological disease in Iran during 27 years ago. We used the data of the Global Burden of Disease (GBD) Study to estimate the incidence and DALYs of neurological disease in Iran in different age groups between 1990 and 2017. Age groups were defined in 5 groups including < 5 years, 5-14 years, 15-49 years, 50-69 years, and ≥ 70 years. The incidence number of neurological disease during 1990 to 2017 increased from 7.5 million to more than 12 million and the incidence rate grew as much as 1400 per 100000 populations in Iran. Totally, headache, epilepsy, and Alzheimer were the most common neurological diseases according to incidence and had the most values of DALY in Iran. The highest incidence and DALY of neurological disease was observed in the age group of 15-49 years. This study showed that the incidence and burden of neurological diseases had a dramatic increasing trend during 27 years ago in Iran. Consequently, it is necessary to investigate the causes of the growing trend in future studies.