With the increasing amounts of research and practices of use innovation and quick responses to environmental changes, great attention has been paid to organizational customer innovation and organizational responsiveness as well. Based on supplier responsiveness to the organizational user innovation, this paper firstly explores not only the direct influence of supplier responsiveness on project performance, but also the indirect influence mediated by customer knowledge sharing, and then makes an empirical study in the context of China's telecommunication service industry. Finally, conclusions, implications, and limitations of the research are presented.