探讨了先进的三维激光扫描技术在地下矿山二步骤采场回采爆破设计中的应用。该技术方法通过快速获取采空区的三维坐标数据，生成高精度的三维模型、更加多源的岩石物理信息为爆破设计提供了精确的设计参数。与传统的测量方法相比，集成化移动式三维激光扫描技术不仅提高了数据采集的效率和精度，而且通过与矿业软件的集成，实现了模型与设计的高效融合，显著提升了爆破方案的精准度和采场的安全性。通过实际工程案例分析，验证了该方法在减少矿石损失、提高资源回收率和作业效率方面的显著效果，采场矿石资源回收率达到95 %以上，为矿山的安全、高效开采提供了有力的技术支持。  

This study investigates the application of advanced 3D laser scanning technology in the blasting design for mining in two-step junderground stopes. The method rapidly acquires 3D coordinate data of the goaf and generates high-precision 3D models along with comprehensive rock physical property data, providing precise parameters for blasting design. Compared with traditional survev methods. integrated mobile 3D laser scanning technology not only improves the efficiency and accuracy of data collection but also, when combined with mining software, enables efficient integration of the 3D model with the design scheme. This significantly enhances the precision of the blasting plan and the safety of the stope. Analysis of a practical case validates that this method significantly reduces ore loss and increases the resource recovery rate and operational efficiency. In that case, the ore recovery rate in the stope exceeded 95 %, providing strong technical support for safe and efficient mining operations.