Environmental Management System (EMS) is organized as part of the overall management system used to develop and implement its environmental policy and manage its environmental aspects, including the development, implementation, implementation, reviewing and maintaining the organization's environmental policy, plans activities, responsibilities, practices, procedures, processes and resources. ISO14001: 1996 Environmental Management Systems - Specification with guidance is an international standard can be used for certification purposes of the International Organization for Standardization (ISO) in 1996 formally promulgated, is the core of ISO14000 series of standards, which requires organizations through the establishment of environmental management system to achieve support for environmental protection, pollution prevention and continuous improvement goals, and by taking the form of a third-party certification bodies, to the outside world to demonstrate compliance and environmental management of its environmental management system. Since the ISO14001 environmental management system can bring energy saving and enhance the competitiveness of enterprises, to win customers, gain the trust of the government and the public, and many other benefits, so from the date of issuance to obtain a positive response from the majority of enterprises to enter the international market is considered The "green pass." Meanwhile, the promotion and popularization of ISO14001 macro can play in relation to coordinate economic development and environmental protection, raise environmental awareness, promote conservation and promote the role of technological progress, and therefore by the governments and the people more and more attention. To be more clear and explicit ISO14001 standards, ISO revised the standard, and in November 15, 2004 issued a new standard ISO14001: 2004 Environmental Management System Requirements with guidance.