Taiwan has been suffering many serious earthquake hazards in the past. It causes heavy casualties and property loss. It is necessary to urge and instruct residents in earthquake hazard prone area to bear the response ability.Many research works have indicated that the residents’ ability of precaution to hazard is highly correlated with the experience of hazard. This study is attempt to examine the residents’ ability of precaution to hazard after the Chi-chi earthquake on September 21, 1999 in Tungshih, Taichung and Paiho, Tainan. A comparative study between Tungshih and Paiho has been investigated different residents’ perception, attitude and behavior of the earthquake hazard.