Abstract: For the disaster area aid and reconstruction well, it is important to use the scientific and effective method to carry on the correctly comprehensive evaluation of the earthquake disaster area. According to the disaster index, 36 seriously affected counties of Wenchuan earthquake have been analyzed on weighted TOPSIS method. Firstly, two types of weighted TOPSIS method are established based on the principal component analysis method and entropy method. Secondly, these relative proximity comprehensive evaluation values of 36 counties and cities are obtained through analyzing the earthquake disaster data by two types of weighted TOPSIS method, respectively. Finally, according to the severity of the disaster, these 36 counties and cities are ranked and classified by these relative proximity comprehensive evaluation values. The results of two types of weighted TOPSIS method are consistent with the reference results, so these methods are the effective ways of the correctly comprehensive evaluation to the earthquake disaster.

Key words: Earthquake, Indicator Evaluation, Principal Component Analysis Method, Entropy Method, TOPSIS Method