Abstract: 【Purpose/significance】Tourism information service platform is the key support for modern tourism development. Studying
the use intention, behavior and influencing factors of users of tourism information service platform will help platform operators to con-
tinuously optimize functions and improve service level【. Method/process】Based on the UTAUT model and comprehensively consider-
ing the degree of trust, perceived risk, product or service authority, the structural equation model of the influencing factors of users'
willingness to use the tourism information service platform is constructed. Taking the "handheld high-speed railway" as an example,
the measurement scale of the influencing factors of users' willingness to use is designed. The data are collected by issuing a question-
naire and using software R4 The structural equation model is analyzed in 1.0.【Result/conclusion】The conclusion of data analysis
shows that pay expectation, social impact, convenience, trust and product or service authority have a significant positive impact on useintention, perceived risk has a significant negative impact on use intention, and performance expectation and use intention have a sig-nificant positive impact on use behavior【. Innovation/limitation】In the future, it can be further improved in function construction, sup-plier selection, quality control, advertising, etc. Limited to time and energy, the sample size covered in this study is not large enough,and there is still room for improvement in population segmentation coverage.