Abstract:In recent years a considerable literature has come forth dealing with information aggregation in group decision-making using the tools of game theory By analyzing group members’ incentives and rational behaviors in group decision-making, this game theoretic literature gives out some important insights against people’s intuition The research developments in this field are systematically reviewed from four aspects, which are acquisition of decision information, information revelation during deliberation, influence of transparency, and optimal decision rules The research on information aggregation in group decision-making based on game theory is compared with the traditional mainstream research on group decision-making in economics, politics, management science, and social psychology And the advantage of using the tools of game theory is analyzed for studying information aggregation in group decision-making Finally the shortcomings of the existing research are presented