The purpose of this study is to reveal the influence of online word-of-mouth communication at restaurants using mobile applications on consumer motives and choice behaviors, and a survey was conducted about the ordered Korean cuisines by mobile devices for 282 customers in Seoul for 18 days. As a result of the survey, it was meaningful, and it adopted a hypothesis about the effect of online word-of-mouth communication at restaurants using mobile applications on consumers' usage motives and choice behaviors in the COVID-19 pandemic circumstance. In particular, the decision motive of consumers showed a noticeable mediation effect on the choice behavior about restaurants according to word-of-mouth communication through an online SNS. This means that non-face-to-face exchange using word-of-mouth communication online was activated for the decision motive and choice behavior about restaurants using non-face-to-face mobile applications, and more users were affected in the prolonged pandemic circumstance. The effect of the word-of-mouth communication online has doubled from before the COVID-19, and the choice of restaurants has, also, increased from 48% to 104.9%, which showed the usefulness of this study.