This study was applied the Information acceptance model (IAM) to investigate the effect of variables on the information income process and consumer involvement of potential online consumers. For this reason, a total of 265 copies of the questionnaire registered from April 1, 2022 to April 15, 2022, targeting consumers in their 20s and 60s nationwide who have experience of online consumption of HMR within the last 6 months. Of these, a total of 249 copies were empirically analyzed, excluding 16 copies that the researchers judged to be dishonest. The results are as follows. First, HMR information quality had a significant positive (+) impact on the usefulness of information. Second, HMR credibility of the informant been shown to have a positive (+) effect on information usefulness. Third, it was found that the usefulness of information has a positive (+) effect on the adoption of information. Fourth, Consumer participation was found to have a moderating effect on the impact of information quality and credibility of the informant on information usefulness. The results of this research will be useful for a wide range of marketing activities of restaurants and food companies that recognize the importance of the information processing process of online HMR consumers, and will contribute to the growth of the rapidly growing HMR market.