Abstract: In view of large-scale landslides in western mine transport of Jinfeng Open Pit Gold Mine，the reasons for it were analyzed from aspects of geological structure，water，weathering，blasting and mining activities etc..It is proposed that landslides be comprehensively treated by long pre-stressed anchor，bolt-shotcrete-net，anti-sliding pile，gravity guard wall and dewatering/depressurization holes etc.，and stone-concretes were backfilled in layers to reconstruct western the mine transport road. With application of rock mechanics software Slide，the reconstructed slopes of the mine transport road were simulated to make theoretical analysis its slope stability.The simulation results showed that the minimum safety factor of the slope is 1.13，greater than the safety factor 1.0 of slope failure.Robotic monitoring systems Autoslope and geological radar monitoring systems are adopted to survey the slope deformation with monitoring accuracy up to 0.1 mm.1-year monitoring result showed that the slope was in a stable condition.Through theoretical analysis and practical monitoring，the results showed that：① The adoption of long cable，bolt-shotcrete-net，anti-sliding pile，gravity guard wall and dewatering/depressurization holes had a good reinforcement effect; ② Stone-concrete backfilling in layers had an obvious effect in large-scale landslide treatment.This treatment method has some reference in the relevant landslide treatment.

Key words: Open pit slope, Land shide,Slope stability analysis, Slope treatment, Slope deformation monitoring, Slide software analysis