Research in the IS areas has shared many views on technology and reward in organizations that support knowledge sharing behavior. However, these researches have not clearly mentioned how technology and reward system could be the enabler that would encourage and sustain knowledge sharing. By adopting the Theory of Reason Action and Social Exchange Theory, this paper develops a theoretical model that provides guidance on how organizations could embed reward systems as a part of their larger knowledge management systems. With this model, business and IT managers could ensure that their reward system has the mechanisms (i.e. IT Support, Quality Evaluation) that support knowledge sharing intention. It is hoped that the intrinsic rewards (i.e. reciprocity, self-efficacy, recognition, and enjoyment) gained from the reward management system could then drives a sustainable knowledge sharing behavior. © 2005 - 2016 JATIT & LLS. All rights reserved.