During the developments of smart cities' technologies and "5G+" technology, various smart tourism technologies were intensively developing and upgrading. But before a trip, what factors could affect travelers' use intention and travelers' perceived value placed on smart tourism technology? What factors could influence a traveler's feelings of overall tourism destination satisfaction? Little literature focuses on this interesting and value question and inquiry regarding motivation. Therefore, this research was constructed. A quantitative analysis was carried out using a questionnaire. The Yunnan mobile tour application was chosen as the research case. After analyzing the research data, relative advantage, compatibility, and observability could all positively affect travelers' use intentions of smart tourism technology. Observability and travelers' use intention could both positively affect travelers' perceived value of smart tourism technology. Travelers' use intention and travelers' perceived value could both positively affect overall tourism destination satisfaction with smart tourism technology. The research results and conclusions provided some insights for authors who are interested in this theme, and also provided some suggestions for the providers of smart tourism technology.