Abstract: In the stability analysis of rocky slope,the rock mass is generally abstracted into geologic model,mechan-ical medel or geometric medel.The distinct model must be selected according to the feature of analyzing methodusd,i.e. the general geologic model is established for 3-d model test and the equivalent continuum medel is es-tablished for numeric calculation.Taking the Lianziya precipise as an example,these models with corresponding pa-rameters are made in the paper.It is shown that the results of model test,calculation and field test are consistent with each other.