Abstract: Objective To understand the implementation of the newly promulgated e-cigarette related policies and regulations,provide a basis for further e-cigarette supervision. Methods A questionnaire survey was conducted among 960 adults in Beijing and Shenzhen City from July to October 2023 by the convenient sampling. Chi-square test and Fisher 's exact probability test were used to explore the awareness and support of e-cigarette related policies and regulations. The sales of flavored e-cigarettes in e-cigarette stores around schools and in areas with large traffic were observed. Results Only 63.8% of the respondents had heard of the Measures for the Administration of Electronic Cigarettes. The awareness proportion of students was lower than that of government/public institution personnel,medical personnel,enterprise,business and service personnel and other personnel. The awareness proportion of 18-<25 years old was lower than that of 35-<45 years old and ≥45 years old. 56.4% of respondents supported banning flavored e-cigarettes except for tobacco flavors. The support proportion of those who have heard of the Measures was higher than that of those who have not heard of it. These differences were found to be statistically significant（all P<0.05）. 67.7%（21/31） of e-cigarette stores sold fruit-flavored e-cigarette cartridges,and 70.1% of those who bought e-cigarettes in 2023 bought non-tobacco flavors. 85.0%（17/20） of the primary and secondary schools had tobacco shops around. Conclusion The proportion of public awareness and support of e-cigarette related policies and regulations is low,and the ban on the sale of flavored e-cigarettes has not been effectively implemented,so the law enforcement and policy promotion should be strengthened.

Key words: E-cigarettes, E-cigarette related policies and regulations, Flavored e-cigarettes