Haze has become the crisis events in the development of tourist industry. On the basis of network public opinion,this paper studies the impact of haze on the path of tourist preference,finds that the tourist group become more and more sensitive to the problem of haze,the concept of travel to escape the haze is spreading rapidly,the guide of media and the products of travel agency and OTA have rapidly changed the tourist preference,the flow of domestic tourism and the flow of inbound tourism appeared the dif...