In this study, the case of the seismic evaluation and retrofit for domestic masonry building, which are applied to the house for the aged in Busan city, was introduced. Seismic evaluation can be decided by comparing the seismic capacity index(Is) with the seismic protection index(Iso). According to the seismic evaluation, the seismic retrofit using metal lath and steel plate retrofit method was applied to the case of the lack of the seismic capacity. As a result of the retrofit, the seismic capacity was improved.