Research on blasting process plays an important role in reducing mine costs and improving mine benefit.However,field industrial tests have the drawbacks of long period,large workload and high cost.Moreover,blasting simulation software such as LS-DYNA requires users to have strong professional knowledge and mechanical skills.This paper introduces the functional composition of blasting analysis software JKSimBlast,and analyzes the application process of 2DBench open-pit blasting simulation module.The study includes the two key techniques and solutions of the selection of the fragmentation analysis model,the source of rock mass damage analysis parameters.Based on the 3730 m bench in an open pit mine,blasting industrial application is carried out.According to the actual situation of blasting area,the burden is determined as 5.5 m and the hole spacing is determined as 8 m.There are two charge structures:One is decked charge with stemming of 7 m,decking of 3 m,charge lengths of 3 m and 4.8 m.The other is continuous charge with stemming of 7 m,charge length of 10.8 m.The initiation network includes in-hole delay of 425 ms and surface delays of 17/25/42 ms.The simulation results show that the current blasting boulder rate of the mine is high,and the fragmentation uniformity of the slope top surface is poor,and the boulder tend to be at the front of the blast pile.The reason may be the long stemming length on the upper part of the blast hole.The software analysis results are consistent with the field fragment analysis results,indicating that the simulation results of JKSimBlast software are reliable and feasible for daily blasting design and analysis in open-pit mines.