Taking the highway slope rockfall from Jiange County to Qingchuan County as the research object and combining with the slope microlandform,a two-dimensional numerical model of rockfall movement characteristics under earthquake is established based on the field mapping of rockfall movement traces and settling positions. The Rockfall simulation software is used to simulate the movement characteristics of rockfalls,exploring the laws and disaster impacts of rockfall movements on highway slopes under earthquake. The simulation results are consistent with the movement traces observed in previous rockfalls caused by the Wenchuan earthquake.Based on these simulation results,important reference parameters such as rockfalls stop positions,translation speed,and bouncing heights of rockfalls can be obtained,providing valuable guidance for engineering prevention and control measures for road slope rockfalls under earthquake action including earthquake.