Based on introducing the condition of the physical geography and geological environment, illuminating the character of geological hazards and analyzing various forming condition and the elements of geological hazards in oft-com:office:smarttags" />Changsha City, the paper selects evaluating indicator and synthetically evaluates the susceptibility of geology hazard by applying the synthetic hazard index. According to the result, Changsha City is divided into four zones of geological disasters: high, middle and low-happened district. On the basis of the general judgment of vulnerable degree, preventive areas are divided. The results almost fit to the fact of regional geological hazard in Changsha City and also provides scientific proof for protecting and reducing hazard and making a reasonable development planning.