MICE metaverses can generate revenue through the rental of implemented facilities and spaces, not only by implementing spaces and using specialized facilities, but also by improving the experience of participants using ICT technology. Therefore, this study sought to strengthen the competitiveness of public metaverses from a business perspective. In order to effectively achieve the purpose of the study, first, the concept, features, and policy trends of metaverse from the business level were examined; second, the current status of metaverse utilization in the MICE field was examined, and cases of public MICE metaverse utilization and operation were analyzed. Finally, we proposed a plan to strengthen the competitiveness of a sustainable public MICE metaverse. As a result of the case analysis, it was found that the public MICE metaverse is implemented similarly to the real world, with meeting facilities along with various local tourism resources, but lacks a business-level revenue connection element. Therefore, in order to operate a sustainable public metaverse platform, we proposed, first, to implement a MICE event space customized for individual events centered on meeting and exhibition spaces by alleviating the constraints of space and time through the metaverse; second, to propose a venue-specific metaverse business model centered on core contents in line with the nature of the public platform; third, to operate a revenue model using the metaverse, including rental fees, admission fee revenue, and publicity revenue; and fourth, to foster MICE-specific metaverse talents and expand the base. Especially in the MICE metaverse platform, where meetings and transactions take place in virtual space, issues of privacy and copyright laws are high, so it is necessary to review legal issues and make efforts to create a safe and reliable environment. In the case of public platforms, there is room for criticism when operating a business revenue model, but it is essential to operate a revenue model to become a sustainable platform that provides better services. Therefore, it is necessary to review more diverse MICE and other fields' operation cases from a business perspective through future research, and empirical reviews are required beyond policy and case studies.