Twenty-one century is a knowledge-economy age. Knowledge that replaces the machine, capital, material, or labor becomes the most important element of management of organization. Knowledge is also an important condition of competition and survival. Knowledge plays an important role in economic system in the future. A government of huge organization should make efforts in the management of transferring knowledge to competition as enterprise. According to government will play an important role as a planner and advancer, so the research of government knowledge management will be took into account. The research collects and classifies literature and finds seven original factors of government knowledge management, and verifies the relationship among three variables of knowledge management behavior intention. The research uses principal factor analysis to find the key success factors of knowledge management. Six key success factors has been extracted in this research by factor analysis (principal component analysis), they are (1)the basis of knowledge management of organization ; (2)important conception of knowledge management to organization ; (3) need for a clear standard system to evaluate ; (4) available resource of information technology¡F(5)policy support¡F(6)the responsible group for knowledge management. The analysis of this research showed that 28 KM variables are considered significantly important. The first important variable is ¡§leadership and ability to promote change of the management¡¨ and previous five factors are especially the factor of the attitude to knowledge management. The research also classify three factors about the difficulties of the implement of knowledge management, they are (1)the difficulties about employees¡¦ abilities of technology¡F(2)the difficulties about the organization structure and culture¡F(3)the difficulties about the abilities of planning. The conclusion of this research is to provide feasible suggestions to government administration so that they could construct KM in an effective and efficient way. Some supportive policies from the government organizations are suggested as well and I hope this research can provide the government with the experience.