The COVID-19 crisis has an unprecedented impact on travel industry. Although Taiwan's borders are still remain closed to non-essential international travel, travel web sites have become more important media for Taiwan residents to search for domestic travel activities. With the prevalence of the Internet and e-commerce nowadays, they are the rapidest and most efficient channels to look for information on the latest activities and travel security information. Information quality and system quality of travel web sites are extremely important bases since they decide users' behavior of information exchange on the platforms. Since the Internet can immediately share information, consumers' various knowledge sharing behaviors on sites can enhance knowledge creation. This study explores the correlations among information quality, system quality, knowledge sharing, and knowledge creation of travel web sites and treats consumers who have used travel web site services in Taiwan as subjects. It collects the data and analyzes hypotheses by structural equation modeling. The findings show that information quality and system quality of travel web sites positively and significantly influence knowledge sharing. Knowledge sharing shows positive and significant predictive power on knowledge creation. Considering about the coronavirus outbreak which has a significant impact on tourism industry, the conclusion provides suggestions for travel web site management and practice, which also can further serve as important strategies for continuous updating of travel web sites.