Taking the travel guides collected by Ctrip and Qunar as research materials, based on the "cognition-emotion" theory of tourism destination, the ROST CM6 software is used to analyze the content of the collected web texts. The results show that: The overall satisfaction of tourists for tourism resources and tourism environment is high, with positive evaluation accounting for 83.05%, and less neutral and negative emotions. The negative emotion mainly comes from the single tourism activity, the unreasonable joint ticket system and the supporting tourism infrastructure. Improvement suggestions for the source of negative emotions are put forward, and provide reference for the improvement of image perception of natural scenery scenic spots.