Abstract:Efficient data sharing in construction projects can help ensure the overall performance of the projects, but there are problems in the process of data sharing in construction projects, such as lagging data sharing standardization, insufficient endogenous power of data sharing, and unsatisfactory data sharing security environment, which make project data sharing face the dilemma of "unsmooth, unwilling and uneasy". Based on this, this paper reviews the current situation of data sharing application and research in construction projects, constructs an analysis framework for data sharing in construction projects based on three dimensions: data sharing quality, data sharing subjects and data sharing mechanism, and proposes solutions to the problems of " unsmooth, unwilling and uneasy" in the process of data sharing in construction projects, so as to provide references and suggestions for high-quality data sharing in construction projects.