From 2013 to 2015, investigators conducted three waves of the policy-related survey on tobacco control. The surveys gathered information such as second hand smoking (SHS) exposure at home, in the workplace, and in various public places (e.g. bars/restaurants, door way of the buildings, streets, and bus stops), use of smoking cessation services, knowledge of smoking and quitting, and smoking prevalence; measured the impact of tobacco control policies such as tax increase in 2011 and 2014, expansion of smoke-free areas in 2009 and 2010, and pictorial health warnings on behavioral change of smokers and ex-smokers; collected the opinions on current policies such as smoke-free areas, pictorial health warnings and point of sale displays, and the opinions towards future policies such as tax increase, plain packaging, and tobacco endgame. The results of the three waves have been used by the Hong Kong Council On Smoking and Health (COSH) to advocate plain packaging, banning on point of sale displays, and increasing tobacco tax by 100% in the past 3 years.