Abstract: To investigate the current status, hotspots, and frontier trends in the research on campus waste classification and recycling, based on the literature collected in the core collection of the Web of Science (WoS) database from 1990 to 2023 and their references, bibliometric analysis and knowledge mapping were conducted, which included the state of publications, the distribution of research power, keywords co-occurrence and time-zone distribution, literature co-citation and cluster analysis, and burst analysis of keywords. The results showed that the number of articles in this field keep increasing annually, with a significant growth from 2010 to 2017, and the disciplines mainly focused on environmental science and education. The overall number of publications issued by developing countries and developed countries was comparable, but the research level of developed countries was relatively higher. Most research institutions had a small number of publications and a weak cooperative relationship. The main research hotspots had gradually enriched from early stages of solid waste, environmental education, attitude, behavior, and circular economy to multiple themes, including electronic waste, plastic waste, food waste, zero waste, planned behavior and extended theory, willingness, sustainability, environmental knowledge, and environmental performance. Environmental knowledge, environmental sustainability and reduction, and circular economy could be the research frontiers in the future, with a focus on the study of the characteristic components of campus waste, behavior, willingness, and influencing factors of waste sorting, as well as the establishment of green campus and sustainable campus.

Key words: campus waste, bibliometrics, burst analysis, cluster analysis, knowledge mapping