Hang Kong is a world famous tourist destination and tourist source region. In order to explore the perception and evaluation of mainland tourists on Hong Kong, by using content analysis method, by taking 114 online articles on Hong Kong travel in Qunar Net as the research sample, with the help of RostCM6, this paper analyzes the texts, and analyzes tourism perception of Mainland tourists on Hong Kong from the perspective of regional names, scenic spots, transportation, accommodation, food and shopping and so on to discuss their evaluation on the feelings on Hong Kong travel. The research indicates that the perception of Mainland tourists on Hong Kong tourism is mainly scenic spots of Hong Kong city, followed by administrative divisions, followed by traffic, food, accommodation and shopping and they have rich and positive emotional evaluation on Hong Kong.