This study makes a proposal of measures for regional medical treatments speedy and efficient after an earthquake disaster.Regional medical potential in this study is defined;possibility that we go according to disaster prevention plan for medical treatmemt normality;regional medical ability that wounded persons can have treated properly.First of all,evaluation items are decided to judge regional medical potential,next hospital's characteristics in Thurumi-ku area are understood by the evaluation item.This study is made a proposal that we a few base hospitals for earthquake disaster are selected and that regional medical potential in Thurumi-ku area is improved,in conclusion