The purpose of this study is to investigate the impact of the activities for KM on the knowledge sharing through the social networking and digital networking. The research conducted a survey and analyzed the level of the social and digital networking, and identified the relationships with the factors of KM activities, and the knowledge sharing. As the results, the findings illustrate that the managers focused on digital networking based on IS for knowledge sharing. In contrast, for the employees, they mainly focused on social networking. Moreover, as a result of that all the social and digital networking are positive effect on the knowledge sharing, it is need to establish strategies for knowledge sharing through social networking in their organizations.