The brand value of Anxi Tieguanyin has promoted the development of regional economy and is of great value to the research of Anxi Tieguanyin's marketing strategy. The data of Baidu index and 3581 online shopping evaluations are captured, and the data are processed by visual analysis platform Tuyue and qualitative research software Rost CM. Then the grounded theory is used to code high-frequency evaluation words to obtain the influencing factor model of Anxi Tieguanyin's customer purchase intention. Finally, based on the analysis of the whole network data, this paper puts forward the marketing strategy of Anxi Tieguanyin.