In recent years, with the development of tourist industry, complaint rate from tourists is ever increasing, among which many are targeted toward tourist agencies. This increase in complaint leads to people’s mistrust in tourist agencies, which turns out to be harmful to the whole industry. Through the analysis of the yearly complaint about tourism industry collected in 2011, this paper finds out the causes of such complaint and therefore puts forward some suggestions on how to prevent complaint in advance. Hopefully, this paper will help provide references to other agencies in improving the service.