Today's technological advancement and advanced information technology have improved the standard of living and convenience. We are facing many negative effects, such as information overload, information conflict, and information management difficulties. How E-WOM effect companies are now one of the most urgent and important issues. This research focuses on the influence of opinion leaders, consumer trust and brand image on positive E-WOM with A and B personality traits as the main axis. The purpose is to explore whether the A and B personality traits can affect consumers' positive word-of-mouth. This research takes consumers in the restaurant service industry as the research object and collects information using Google questionnaires. 304 questionnaires were sent out, of which 291 were valid, and the recovery rate was 95%. The results of the study shows that type A personality traits are significantly positively correlated with word-of-mouth, which supports the hypothesis of this study.