Abstract: In order to promote the sustainable development of BIM technology in the construction industry, the influencing factors and its mechanism of BIM technology adoption behavior of construction companies are explored. The influencing factors that drive construction companies to adopt BIM technology were identified from five aspects of technology, organization, economy, cognition and environment. Sample data based on questionnaire surveys was collected and 17 main influencing factors were extracted through correlation analysis and factor analysis. An ISM model was constructed, the hierarchical relationship between the influencing factors were clarified. MICMAC method is used to analyze the dependence and driving force of the influencing factors and the internal correlation and its mechanism of the influencing factors were revealed. Furtherly, the targeted suggestions for promoting construction companies to adopt BIM technology are provided. The research results show that the dispute resolution mechanism is a key factor that affects the adoption behavior of BIM technology, and the cost of restructuring work model, the willingness to change thinking and working methods, the perceived ease of use, and the degree of organizational resource readiness are the direct factors that affect the adoption behavior of BIM technology.