Abstract: The geological environment conditions of Hongtao mountain landslide in Nanping city are investigated and the soil structure,perimeter, deformation characteristics, influence factors and mechanism of deformation and fracture of the landslide are analyzed in depth. The analysis results show that, the landslide is shown as “slipping-cracking-cutting”. According to the landslide causes, some related measures are taken, the upside of landslide is conducted cutting and load shedding, the local part of landslide is dealt with anchor rod latticing and slide-resistant pile, the slope toe of landslide is reinforced by slide-resistant pile. So, the good application effects are obtained.

Key words: Landslide, Formation mechanism, Treatment measures