In recent years, the increasing complexity of construction projects, the expansion of technical and managerial dimensions, and the need to improve the safety level of workshops have led researchers and construction industry activists to utilize new technologies. Meanwhile, Building Information Modeling (BIM) and the Internet of Things (IoT), as two transformative technologies, provide significant opportunities to improve monitoring processes, risk management, and incident prevention. The aim of this study is to evaluate the impact of using an integrated approach of building information modeling and the Internet of Things on improving the safety level of construction projects. To this end, a questionnaire was designed and data was collected from experts, project managers, and contractors active in construction companies in Tehran, and data analysis was performed using the structural equation model. The results of the analysis of significant coefficients show that the main hypothesis of the research is confirmed; that is, the evaluation of building information through the Internet of Things has a positive and significant effect on improving the safety of construction projects. The path of building information evaluation → Internet of Things with a factor loading of 0.825 and a t-statistic of 42.969 and the path of Internet of Things → Project Safety with a factor loading of 0.322 and a t-statistic of 8.947 were reported to be significant. All variables in the model have factor loadings above 0.30, indicating a good fit of the model. Also, based on the Sobel test (8.761), the mediating role of the Internet of Things was confirmed, and it was determined that this technology significantly enhances the effect of building information evaluation on project safety. Finally, by providing empirical evidence, this research has contributed to the enrichment of safety literature in the construction industry and can be a valuable guide for project managers, policymakers, and designers of intelligent systems in implementing new technologies in project safety management.