Abstract：For revealing the relationship between distribution of landslides and environmental factors, 4722 earthquake-induced landslides had been obtained with field investigation and interpretation of remote-sensing images, and used GIS techniques to finish the statistical data including distance from middle faults, lithology, altitute, river, slope and aspect of slope. The main results of the paper about responsive mechanism between the distrution of landslides and factors can be summarized as follows. (1) The zonal distribution of landslides was consistent with strike of middle faults and the seismic energy was released along the middle faults which caused the attenuation of energy obvious in minor axis and about 64.42% of landslides were distributed within 20 km from middle faults. The density in hangingwall of middle faults was obviously higher than that in footwall which underwent the variation of reduce-increase-reduce because of the break of middle and front thrusting faults. (2) The release of seismic energy was restricted by landform and river. The high density of landslides was in high altitude, steep slope, intense incision. The concentrated distribution of landslides was in river banks and the origin of landslides was in upside of slope because of the magnified effect for earthquake. (3) About 99.43% of landslides were distributed in area where the seismic intensity was more than Ⅶ and the highest density of landslides were in soft rocks because of the earthquake site coefficients. (4) The high density occurred in the intersection direction of the gradient topography and the faults breaking and landslides with large scale appeared in the union direction, which was convenient for seismic energy transmitting.
