Focusing on multi-stakeholder consuming psychology and behavior research in peer-to-peer (P2P) accommodation, the authors conduct a systematic review of research over past 15 years (2008-2022) based on 360 papers in the WOS database. Through the perspective of service ecosystem, this paper aims to convey the structure of knowledge on this ever-evolving subject. The key stakeholders in the P2P accommodation ecosystem include consumers, hosts, platforms, the government, and community residents, and the authors sort through the psychology and behaviors of each in turn and provide a framework for research content to identify the connections among them. This paper fills the gaps of the existing literature reviews and proposes new directions for future research about P2P accommodation.