The purpose of this study was to understand the essence of marital intimacy formation experience by understanding the common meaning of Christian middle-aged and old-age remarried couples' experiences of marital intimacy and by revealing the structure of the experience of marital intimacy. For this purpose, in-depth interviews were conducted with 10 Christian middle-aged and elderly remarried couples. The research question is first, what is the content of the experience of forming marital intimacy of remarried couples in the middle and old age of Christianity? Second, what is the structure of Christian middle-aged and elderly remarried couples' experiences of forming marital intimacy? to be. By analyzing the in-depth interview data using Giorgi's phenomenological method, 'loneliness of loneliness', 'considering remarriage', 'intimacy before remarriage', 'unfavorable remarriage life', 'marital intimacy', 'happy remarriage life' It is categorized into six components, and it can be seen as a general structure that constitutes the essence of the experience of forming intimacy with remarried couples. It was found that the greatest driving force for Christian remarried couples to move from 'becoming two' to complete 'oneness' is 'faith'. This study is meaningful in that it can be used as basic data to help remarried couples form intimacy, prevent re-divorce, and maintain a happy remarriage life by actually applying it in the Christian counseling field.