Abstract：The geological environment and ecological structure are relatively fragile in Lushan County due to the frequent earthquakes in recent years. The high-frequency landslide disasters restrict the infrastructure construction, economic development, and threaten the safety of people’s lives and properties. The analysis of spatial hete-rogeneity of influencing factors of landslide disasters in Lushan County under static geological environment can provide basic data for land and space planning in the region and data support for landslide disasters prediction and prevention. The relationship between landslide development and 12 influencing factors, such as elevation and slope, were analyzed by information model and geographic detector, and the law of landslide development were summarized. Besides, the spatial heterogeneity characteristics of influencing factors were also studied, and a landslide-prone Sexual Evaluation Chart was generated using GIS weighted superposition. The results show that ① Landslides are mainly concentrated in areas with low elevations ([571,1 300) m), close to the road ([0,300) m) and water system ([0,300) m), small topographic relief ([0,30) m), gentle slope ([0°,30°)) and close to fault ([0,600) m). The landslides occurred in sedimentary rocks of silty mudstone, argillaceous siltstone, mudstone and Quaternary sedimentary, and lands for construction and agriculture. ② Landslide development is mainly controlled by factors such as elevation, distance from road and engineering geological rock group. And the land use type, distance from water system, terrain relief, slope, and distance from fault also have high contribution rates to the landslide. ③ The effects of two different influencing factors on landslide development show two-factors or nonlinear character compared with a single factor. The interaction between the distance from the road, elevation and other factors is the strongest. ④ The landslide-prone areas and extremely high landslide-prone areas are mainly distributed in the middle and low mountain canyons, hilly areas and river valley landforms in the southeastern areas.
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