Knowledge is the base of power. The flow of knowledge may lead to recon-struction of organization power system, therefore, the power is bound to influence inter-organization knowledge sharing. This paper analyses the influence of power on the mo- tive, opportunity and effect of the organi-zation knowledge sharing in theory. We find that the relationship between power distance and Subordinate knowledge sharing motive is negative, the relationship between power distance and superior knowledge sharing motive is postive, the relationship between power distance and knowledge sharing opportunity is ...