Abstract：The Wenchuan large earthquake of 8.0 magnitude has shocked Sichuan Province and neighboring regions on May 12，2008，with nearly seventy thousands of lives lost and the whole country immersing in deep sorrow. Based on field survey and analysis of earthquake-induced geological hazards，the engineering geomechanics should be considered and used to play important roles in the relief and reconstruction after the earthquake. According to preliminary investigation into western mountainous areas of Anxian County，several kinds of geological hazards are recognized，mainly including bedding landslide，loose materials landslide，cliff collapses and rockfalls. The field investigations indicate that the geological structural planes in rock masses or geological masses may be important dominant factors for generation of geological hazards in the investigated area. For the reconstruction of the disastrous areas，some engineering geomechanical problems relevant to choices of reconstruction site，monitoring，prevention and remedy of geological hazards，and so on，should be considered.
