Enterprises in China always suffer the phenomenon of commodities fleeing in their sales channel. It is a common behavior in modern marketing which do great harm both to marketing channel members and producers. After analysis of this phenomenon, we can find that cause of formation many and varied. Many scholars analyses the cause of formation of commodities fleeing and write articles about this phenomenon. They analyses the cause of formation of commodities fleeing from product,price,place and promotion. This thesis uses game theory analyzing the cause of formation and probes the methods of settling this problem.