The main purpose of this study is to explore the Coping Strategies of extramarital affairs. The study adopts qualitative research method. According to philosophical views of the hermeneutic phenomenology, the study proceeds to collect, analyze and explain research data. By strategy of intensity sampling, eight participants whose spouses had extramarital affairs were invited in this research by in-depth interview. The study generalizes a conclusion that there are six types of coping strategies of extramarital affairs: (1) the forcing strategy (2) the passive strategy (3) the retrieving strategy (4) the remote strategy (5) the controlling strategy (6) the negotiating strategy. Some characters and suggestions are proposed at last.