Abstract：Landslide has become one of the factors which restrict the state economic development，especially in the western area of China，the landslide disasters are more serious owing to special landform and geological conditions. It often blocks traffic and river，destroys factory and mine and burries villages and towns and even results in a great loss of life and property. The author，based on experience and research for landslide control of 44 a and connected engineering geology with rock mechanics，presents several key techniques and its handling measures in landslide prevention so that it can provide reference to the technicians who are engaged in landslide disaster controlling. The main content concludes：(1) the problems existing in landslide control at the present；(2) key techniques and its handling measures in landslide prevention：① division of slice，grade and layer of large-scale and complex landslide；② slope structures and failure mode of landslide；③ survey and monitoring techniques of landslide；④ test and choice of shearing strength parameter of soil in the sliding zone；⑤ landslide prevention；⑥ basic principle for preventing landslide and its engineering measures.
