Abstract: When we use continuum theory to simulate large-scale rapid landside, the mechanism of the basal friction is still unclear. The Voellmy model is widely adopted in simulation at present, but it has some defects: 1) It can not well predict the flow process of the landslide tail. 2) It is verified that the model is not suitable to simulate small-scale landslides. 3) The model is empirical and lacks theoretical verification. 4) Some parameters in the model can only be obtained by back analysis. On the other hand, the frictional rheology of granular flow can well depict the mechanism of granular flow, and it has been verified by experimental results. In this paper, we introduced the granular frictional law into the simulation of rapid large-scale landsides, and then compared the granular frictional model with the Voellmy model. Computation results show that the frictional coefficient by Voellmy model is infinite with small flow depth, but that by granular friction model has the boundary. In the end, we computed a real landslide case by adopting the two basal friction models, and found that the computed results by the granular frictional model can depict the final deposition depth of the landside better than the Voellmy model.