Abstract: A total of 134 patents related to slim cigarettes were published by State Intellectual Property Office from 1985 to 2017. These patents were statistically analyzed to investigate the status quo and to forecast the development trends. The results showed that:1) The total number of slim cigarette patents raised markedly and continuously from 2013 to 2017. The technology for slim cigarettes was still in a rapid development period. 2) The number of patents applied by domestic tobacco industry accounted for 81.3% of the total number. Among them, China Tobacco Jiangsu Industrial Limited Corporation possessed the largest number of application, followed by China Tobacco Henan Industrial Limited Corporation, China Tobacco Hubei Industrial Limited Corporation and China Tobacco Yunnan Industrial Limited Corporation. Furthermore, the amount of patents applied by the other domestic companies was relatively small, less than 3 patents for each applicant. 3) The IPC types of slim cigarette patents tended to be stable. A24D (slim cigarette filter) technology would still be the hot research topic in the following period, and A24B (processing methods of slim cigarette) may also be a potential research focus. 4) Both of the domestic tobacco industry and the other domestic companies paid more attention to the packaging, processing methods or equipment, and the filters of slim cigarettes. However, as to the specific technology in the field of packaging and cigarette filter, both applicants differed from each other.