The development of informatization is the main task of the transformation and upgrading of the construction industry. As a representative technology of informatization, Building Information Modeling (BIM) is widely believed to help solve the problems of traditional construction industry and improve the efficiency of engineering projects. In recent years, more and more enterprises have adopted BIM technology, which is not only applied to construction engineering, but also expanded to highway engineering, rail transit engineering, airport engineering and so on. In the era of big data, it is also combined with new technologies such as cloud technology, the Internet of Things, and RFID radio frequency identification, which broadens the application range of BIM technology. While paying attention to the BIM application field, the academic circles and the industry have also begun to pay attention to the user satisfaction during and after the implementation of BIM. Analyzing clearly what factors affect the satisfaction of BIM users, and how these factors affect each other, is directly related to the success or failure of BIM technical information system projects, and it is also a problem that researchers and business executives should pay more attention to. However, most of the existing research focuses on the technical application, organizational process and policy environment of BIM, and there are few studies on BIM users and their satisfaction. Based on the perspective of employees of BIM implementation companies in the field of construction engineering, this research will conduct research on the influencing factors of BIM user satisfaction and the mechanism of action between the factors from the perspective of users, so as to deeply understand the thoughts of users, improve the satisfaction of BIM users, and accelerate the development of BIM users. The pace of application of BIM.