The geological disasters induced by the M_S7.0 earthquake of Jiuzhaigou also have the characteristics of ridge-top(or high-position)and long runout. Traditional disaster investigation methods cannot effectively solve the early identification of those hazards. This article used Airborne LiDAR measurement technology to quickly obtain laser point cloud data of the core area of the Jiuzhaigou earthquake. Through the construction of high-precision Digital Elevation Model(DEM)and Digital Orthophoto Map(DOM),a three-dimensional geological disaster interpretation scene was established. Digital terrain analysis,topographic morphology analysis and computer image detection techniques were adopted to comprehensively develop high mountains in the Jiuzhaigou Scenic Area. Comprehensively identify and analyze the hidden dangers of geological hazards with high concealment and randomness in the ridge-top(or high-position)and long runout areas of Jiuzhaigou. Application practice shows that Airborne LiDAR measurement technology can improve the early identification ability of geological hazards in the earthquake-affected area of Jiuzhaigou,and provided some ideas for further improving the comprehensive ability of disaster prevention and reduction.