In the networks of relationships that influence others behavior and attitude are called opinion leaders. The two-step flow theory suggests that information through a variety of media will receive by opinion leaders, and the opinion leaders will spread the information and have the effect to other people. Today's consumer market companies often offer a trial to the high popularity bloggers for product placement, to establish a positive attitude, good reputation, and to enhance consumers purchase behavior. The views of opinion leaders in the virtual community, either positive or negative affect, all have impact to the members of the community (Bansal & Voyer, 2000). In this study, we view the Xbox LIFE community website as a research field, and use depth interviews of qualitative research as a major research method. Through the depth interview we can know the type difference of community website members and understand how the opinion leaders in the community convey the information. In this study we found that opinion leaders¡¦high degree of participation and professional knowledge in the community played a great influence in the community. The opinion leaders¡¦ speeches and views have also become the main sources to the members of the group.This study will help enterprises to seek more marketing-effective way in use online WMO(word of mouth) in the future. From this study we can find that to operate the community website are not just set up the fan pages just because the community websites are in vogue. We must discover the key to affect the community websites¡¦ members, and create the way to bring the community members together. That is the key to promote brand and service.