English：

At present, the construction safety management lacks a truly effective cyber-physical fusionmethod, and the safety risk analysis does not consider the interaction of risk factors. Therefore, aconstruction safety risk management framework based on digital twin is proposed, and a digital twinconstruction safety risk coupling model is constructed. The model integrates the Internet of things andbuilding information model, and combines Apriori algorithm and complex network security risk analysismethod. It can realize the real-time perception and virtual-actual interaction of multi-source informationin the construction process, mine the correlation and coupling relationship between construction safetyrisk factors, and identify safety risks in the form of dynamic data. The application in the resettlement areaproject effectively ensures the construction safety.