Abstract:Building Information Modeling (BIM) has been applied in the construction industry as an information technology, related elements that evolved in the BIM application, such as technologies, processes, policies, and organizational networks, constitute a complex BIM ecosystem that affects the development of building informatization. Drawing on the ecosystem theory and the architecture, engineering and construction (AEC) industry background, firstly, the BIM ecosystem conceptual model is obtained by analogy analysis; then, this paper discusses the impact of BIM platform intervention on the project from three aspects: information, information person and information environment; based on the BIM ecosystem conceptual model, according to the origination of BIM ecosystem and the motive force (e.g. division of labor and cooperation, environmental changes), the formation motivation of BIM ecosystem is analyzed; finally, in order to provide possible research ideas for subsequent research, the research framework of BIM ecosystem is constructed considering the formation, structure, operation and evolution of BIM ecosystem, and corresponding research theories, research contents, research methods and expected results are proposed respectively.