目的 通过分析2006－2018年我国恙虫病报告病例季节分布特征，探讨夏季型和秋季型恙虫病分布区域的划分，为恙虫病媒介研究和防控提供科学依据。方法 整理、分析我国恙虫病报告病例数据，分析病例季节与地理分布。结果 2006－2018年，我国恙虫病发病数逐年上升，全国31个省级行政区均有本地病例。从季节分布看，全年均有发病，6－11月病例数占病例总数的88.87%。从江苏省太湖、安徽省中部、河南省南部、陕西省西安一线以北为秋季型疫区，西藏自治区东部、云南及四川省南部、湖南省西部、江西省南部、浙江省南部以夏季型为主，两者中间存在过渡地带。结论 2006年以来，我国恙虫病发病呈上升趋势，发病季节存在南北方差异，分别以夏季型和秋季型为主，中间有过渡地区，应有针对性地开展调查研究。

Objective To investigate the division of the distribution areas for summer- and autumn-type scrub typhus in China by analyzing the seasonal distribution characteristics of reported scrub typhus cases in China from 2006 to 2018, and to provide a scientific basis for research, prevention and control of scrub typhus vectors. Methods The data of scrub typhus cases reported in China were collected and analyzed, to identify the seasonal and geographical distributions of these cases. Results From 2006 to 2018, the incidence rate of scrub typhus in China increased year by year, with local cases in 31 provincial regions. As for seasonal distribution, the onset of this disease was observed throughout the year, and 88.87% of all cases were observed in June to November. The autumn-type epidemic areas were north to the line from Taihu Lake in Jiangsu to Central Anhui, Southern Henan, and Xi'an in Shaanxi province, and the summer-type epidemic areas were Eastern Tibet, Yunnan, Southern Sichuan, Western Hunan, Southern Jiangxi, and Southern Zhejiang. There was a transitional zone between these two types of epidemic areas. Conclusion The incidence rate of scrub typhus in China has been on the rise since 2006. This disease occurs in different seasons in northern and southern China, with summer- and autumn-type epidemic areas and a transitional zone between them. Therefore, targeted investigation should be performed in different areas for precise intervention.