With the rapid growth of the Internet, business models are going through massive changes, and virtual community provides an important way of communication for Internet business management. This research aims to study the sense of virtual community and community loyalty of the members of virtual community. The researcher took students in universities, colleges, and junior colleges who had used Facebook as research objects; the research proceeded by way of issuing questionnaire, with 307 valid copies recovered. ”Sense of Virtual Community Inventory” was developed in this study, including support exchange, sense of belonging and identification. Finally, through the testifying of Structural Equation Modeling, the study found that users' sense of virtual community can positively affect community loyalty, and that users' sense of community will promote users' behavior of continuous behavioral and their recommendation intention due to community loyalty.