This study aims to explore how the Metaverse platform could be applied to the field of online education, the benefits it brings, and the challenges posed by the application of Metaverse to online education. The study analyzes the benefits of immersive learning brought about by Metaverse and its potential to save education costs, enhance efficiency and students' interest in learning, and explores the application of Metaverse technology in education in relation to the characteristics of online education. The results show that Metaverse technology can support several aspects of online classrooms with realistic senses, personalized teaching models, realistic 3D identities, interactive communication, virtual reality (VR) technology, and gamified learning. This research also presents the problems faced by the Edu-Metaverse, including technology development difficulties, interaction issues, content production, game addiction, privacy, and ethics.