This study analyzed the influencing factors for knowledge sharing at GKMC, and then tried toilluminate the policy meanings implied in the results. To build a framework of analysis, reviewingthe KM-related studies, the author selected five influencing factors for knowledge sharing, such as CMC quality,community commitment, structural social capital, cognitive social capital, and relational capital, and actors, andidentified the fact that all the factors have a positive effect on knowledge sharing. In the case of Kwang-jumetropolitan city, the first factor that affects knowledge sharing is community commitment, the second one isCMC quality, and the third one is structural social capital. This result means that to succeed in knowledgesharing, the local government managers should try to shape the bonding among members, and then to get rid ofthe causes of complaints. In addition, local government also needs to predict problems claims and take properactions for GKMC to be used conveniently through monitoring their work continuously. Furthermore, they shouldmake a free and happy working environment, closely examining the change of the relationship among socialcapitals.