Abstract: The paper presents a software system that can be used in underground blasting design-MICRONMINE．With a copper mine as the research object, the system is used to establish the 3D solid model of the whole mine deposit and engineering, and based on this model, the blasting design is made.The paper expatiates and analyzes in detail the blasting design process and results.It is concluded that the platform provided by MICRONMINE can enable the process of blasting design to be intelligentized, parameterized and digitalized, thus realizing the functions of visualization, controllability and regulability in the design process, optimizing the design, satisfying the mine production requirement and achieving good technical and economical benefits.

Key words: 3D visualization, Blasting design, MICRONMINE system, Grade model