Aim:The purpose of this study was to analyze smoking related beliefs, attitudes and knowledge on anti-smoking legislation among some cafe workers, business owners and customers about smoking ban in their worklaces in province of Trabzon. Method: Agreed to participate in the study to 87 business owner, 140 office employees and 465 customers in total, including 692 people face to face with the survey technique was applied. Results: The 75.3% of those who participated in the study of law is thought necessary. The number of those who believe in the necessity of law is increasing with education level (p<0.0005). Smoking ban was found more necessary by non-smokers than who current smokers and have quit smoking (p<0.0005). There is a no difference between the man and woman about the necessity of law (p=0.403). The 35.6% of business owners, 53.5% of customers, 41.4% of the office staff is considering the law be applied (p=0.021). The 33.9% of current smokers, 62% non-smoking, 54.3% of those who have quit smoking is considering that ban can be applied. There was statistically significant difference among groups(p<0.0005). The number of those who believe in belief that the ban can be applied is increasing with education level (p=0.015). There is a no difference between the man and woman on belief about the ban can be applied (p=0.339). Conclusion: The adoption of the law in our country in terms of exposure to environmental tobacco smoke and social measures have been taken an important step in the way of implementation. The our research that was made immediately preceding the entering into application of the law, was very positive support on law compliance.preventing of the household accidents, determination of the risk factors and recording the home accidents.