When the Era of Knowledge-based Economy approaching, the knowledge is considered a key factor in corporate competitiveness, knowledge sharing play a critical role in an organization knowledge management. The enterprise must through the fast learning system to establish the competitive ability,and will continual readjustment step by the drastic change environment.Due to increasing uncertainly on organization change,political behaviors become active in organization.Therefore,it has some kind of subtle relations between the perceptions of organizational politics¡Bknowledge sharing and organizational changing satisfaction.The research discusses about the correlation analysis of them. This research was proceeded by questionnaire to the sampling objects of five industries in Taiwan.That includes Hospitality Industry,Telecommunication Industry,Manufactory Industry and Transportation Industry.The results indicated¡G 1¡BPerceptions of organizational politics have a significant negative relationship with knowledge sharing. 2¡BPerceptions of organizational politics have a significant negative relationship with organizational changing satisfaction. 3¡BOrganizational changing satisfaction have a significant positive relationship with knowledge sharing. 4¡BOrganizational changing satisfaction mediates the effect between perceptions of organizational politics and knowledge sharing. 5¡BSome of the individual variables have significant difference on the perceptions of organizational politics¡Bknowledge sharing¡Borganizational changing satisfaction.