The purpose of this study is to identify the background and nature of residential mobility and its influencing factors in Seoul metropolitan area. Spacial range of this study includes from Seoul to Gyeong-in area(Gyeonggi-do and Incheon). To measure this tendency, this study established hypotheses and two logistic regression models through previous researches and conducted an analysis based on 1,911 and 2,923 samples, which experienced inbound and outbound moving between the two areas. This research found that residential mobility from Seoul to Gyeong-in and those moving from Gyeong-in to Seoul had some differences in the household, socio-economic, environmental, and housing characteristics that affected the moving to each area, as well as the architectural and urban environmental characteristics that affect the Quality of Life(QoL) of the households after the residential mobility was completed.