In order to investigate the safety risk factors that exist in the construction phase of onshore wind power projects and their specific effects and impacts on the overall construction safety management system of wind power projects, this study uses the PDCA (covering planning, execution, inspection, and action) management concept as theoretical support, and integrates the Decision Testing and Evaluation Laboratory (DEMATEL) method and Analysis Network Process (ANP) technology to comprehensively evaluate the construction safety status of onshore wind power projects. In specific operations, relevant influencing factors are screened and determined from four key areas: potential risks in personal safety, risks in equipment safety, risks that may arise in environmental safety, and risks in managing safety processes. A scientific and reasonable evaluation index system is then constructed. Through the DEMATEL method, the comprehensive impact matrix between indicators is calculated, the indicator network structure is organized through the ANP method, and a qualitative evaluation of the risks is conducted. Empirical research has shown that the research method used in this article can effectively evaluate the safety conditions during the construction process of onshore wind power projects. This method has the ability to accurately identify key indicators that have a significant impact on construction process safety, providing valuable reference for relevant regulatory departments to make decisions and implement supervision.