This paper aims to develop a model to sustain digital business communities based on trust and fairness in virtual environments. We used evidence-based literature to develop TFE model and several propositions. It is based on the evidence from secondary data which have been collected from books, journals, newspapers, and internet. There is no or lack of research which concerns on how to sustain a digital business community. Several propositions are also developed to support the working of the models. The outcomes of the model can be used to endorse the sustainability of digital business community. If members of the community contain only trustworthy parties, the community will sustain. Furthermore, if there is fairness in terms of distributive justice, procedural justice, interactional justice and social capital, then community members will feel comfortable living in the community. Their welfare is also a way to foster the commitment and active participation of community members. As a final result, the competitive advantage of the community will bring benefits for the community and other stakeholders involved.