The purpose of this study is to investigate the relationship among leisure sports participation degree of senior welfare center, health promotion lifestyle and quality of life. The subjects of this study were selected by older involvement senior welfare center in Seoul. The final 278 responses collected by convenience sampling method, were used in the data analysis procedure. The questionnaire for the formalization factor of involved of health promotion lifestyle by Kwon(2008) and the questionnaire for the formalization factor of quality of life by Park(2007). The statistical methods such as reliability analysis, factor analysis, and structural equation model analysis were used to analyze the collected data. From the analyses of the data, the study reached the following conclusions: Firstly, leisure sports participation degree of senior welfare center is influence health promotion lifestyle. Secondly, leisure sports participation degree of senior welfare center is influence quality of life. Thirdly, health promotion of lifestyle. leisure sports participation of senior welfare center is influence quality of life.