Objective:To understand the prevalence of tobacco use in middle school students in Fujian in 2019 and 2021, explore the influencing factors associated with tobacco use and provide data support for tobacco control intervention.Methods:Two surveys were conducted in middle school students selected through multi-stage stratified clustering random sampling from 10 counties (districts) of Fujian in 2019 and 2021, and χ2 test was used to examine the differences in prevalence of tobacco use between two years, and multiple logistic regression analysis models were used to analyze the factors associated with the tobacco use. Results:The current smoking rate was 2.9% in middle school students in Fujian in 2021, lower than that in 2019 (4.3%). The rate of smoking attempt was higher in 2021 (15.2%) than in 2019 (13.4%). The rate of passive smoking exposure at home, indoor public place, outdoor public place and public transport in 2021 (51.1%) was lower than in 2019 (62.8%), the differences were significant (all P<0.001). In 2021, being vocational school student, passive smoking exposure, believing that smoking is an attractive behavior, believing that smoking is helpful for social contact and seeing other people smoking, including close friends and teachers, were positive associated with tobacco use. Students who believed that passive smoke is harmful and smoking is difficult to quit had lower current smoking rate and smoking attempt rate, respectively. Conclusions:Although the current smoking rate declined in middle school students in Fujian, the smoking attempt rate increased. We should strengthen the establishment of smoke-free campus, health education about tobacco use control to protect adolescents from the harm of tobacco use.