Individual autonomous fact-checking is a crucial response strategy to food safety misinformation. Based on the theory of planned behavior, the present study considered individual trust in and user experience of using a fact-checking platform and conducted a survey to explore the public's behavioral intentions toward fact-checking. The results revealed that the hypothesis of trust as a mediator was partially supported. Perceived behavioral control was the most positive factor for promoting the public's use of the fact-checking platform; furthermore, user experience, benevolence (trust), and competence (trust) could significantly and positively affect people's fact-checking behavioral intentions. The results further indicated that the integrity (trust) revealed by the platform had significant and negative effects on individuals' fact-checking behavioral intentions.