This study explores the induction et development process of technopolis in several cities of western developed countries such as Cambridge of England, Metz and Sophia-Antipolis of France, Tesalonikie et Hania of Greece and Silicon Valley of United States. Previous studies on the technology innovation network have paid attentions to who cooperates with whom as taking the individual cooperative partner as dummy factor. Different from the previous studies, this study imposes the same importance on the question why cooperates as on who cooperates. Silicon Valley in the U.S. shows high competitiveness by establishing technological innovative clusters. The originality of regional innovative system in the Valley depends on the smooth network based on the trust and the systematic efficiency of tacit knowledge exchanges among various entities such as companies, Universities, research institutes, and governments. Cambridge Sciencepark has some superior conditions of location for technopolis as follows : 1) excellent research & development(R&D) and hign level human resources, 2) industrial conditions of location and transportation infrastructure for R&D industry, 3) the environment for inviting foreign investment, 4) the building R&D cluster. But, the general recognition and evaluation about cooperation among industry, university and research institute shows negatively. In Metz, to build technopolis successfully, local government tried to vary the communication way for building partnership between each industry, public organization, university and so on. The result of case of Metz provides support for the argument that the local government needs to take a greater role in developing the linkages among research institutions, local universities, and industry. Metz technopol continues to create jobs through business incubation focusing on electronical and machinery industries and serve to restructure the regional industries from low value added to high value added secondly. In Sophia-Antipolis, universities, research institutes, municipal governments and industries get together and provide theses following function: (1) R&D; (2) facilities and equipments; (3) technology business incubation; (4) technology innovation centers; (5) pilot plants; (6) distribution of information; (7) management services; (8) career, educational, or entrepreneurial opportunities for local businessmen, students, and inhabitants, and etc. It has contributed many job creations through new startups, and thus played in important role of fostering the city' economic competitiveness. We can indicate also the lasting inflow of the advanced technological information from abroad. Strengthening competitiveness through advance into developed companies and introducing developed technology have been performed. Marketing, strategic alliance among companies, and provision of venture capital have been arranged with help of those who work abroad. In Thesalonikie et Hania of Greece, the authorities in the local government and related with regional innovative system have appointed the facilitatory roles on the network of the industry, the academia and the research rather than the productive roles in the innovative system. It has been also the government to facilitate smooth exchange of information among the various cooperative partners in order to have a successful and effective cooperative relations. Finally, in order to improve the regional economy through the innovation, each parts of the region should be connected more flexibly to each other from the innovative stance. Now in Korea many local governments are interested in forming scientific technology clusters to promote local economy. The result of our study on the technopolis in several western developed countries mentioned above presents an alternative industry development policy by trying to set up and carry out the cluster project that is most suited for Korean situation.