Abstract:Against the background of intelligent mine construction, the innovative upgrading of mine surveying technology will become a crucial approach to the intelligent transformation and upgrading of mines. The purpose of this study is to explore the application potential of handheld 3D laser scanners in the complex environments of underground mines, aiming to enhance the accuracy of mine surveying, the scientific of design, and the effectiveness of safety monitoring through the innovative application of this technology, thereby promoting the refined management and intelligent decision-making of mining operations. The research method involves conducting in-depth analysis of key aspects such as 3D modeling of roadways, fine evaluation of goaf areas, mining optimization design, shaft and skip well inspection, geological structure analysis, and surrounding rock deformation monitoring through field application cases. The results show that the handheld 3D laser scanner significantly improves measurement efficiency and accuracy, with 3D modeling accurately reflecting the shape and geological structure of roadways, providing precise evidence for mining design. It can accurately identify the spatial distribution of voids, supporting safe mining decisions. The scanner also discovers potential safety hazards in shafts, reducing the limitations of manual inspection. It can capture subtle geological features, contributing to a deeper understanding of stratigraphic structure. By continuously monitoring roadway deformation information and data analysis, it effectively warns of potential geological disasters. The conclusion is that the application of handheld 3D laser scanners in underground mines demonstrates significant advantages, not only enhancing the modernization level of mine surveying but also promoting the intelligent transformation of mine. The significance of this study lies in its innovation in systematically demonstrating the comprehensive application value of handheld 3D laser scanners in complex environments of underground mines, closely integrating technological applications with the actual needs of mines, and exploring a feasible solution for intelligent mine. Furthermore, by analyzing the challenges faced by handheld 3D laser scanners, it provides directional guidance for subsequent technological improvements and application promotion, contributing to further cost reduction, optimization of technical compatibility, and improvement of data processing efficiency.