Abstract: Described here is the general information about Tenaris, the biggest steel tube group in the world, covering organization, management and associated companies, main products, marketing strategy, human resource management, environment protection, quality management system, customer service philosophy, global R & D net-work as well as strategy for hi-end products. It is no doubt that the formation and development history of Tenaris will inspire the domestic steel tube circles in creating world first-class steel tube enterprises.