An environmental management system is the part of an organization's overall management system used to develop and implement its environmental policy and to manage its environmental factors, including the organizational structure, program activities, responsibilities, practices, procedures, processes and resources needed to develop, implement, achieve, review and maintain the environmental policy。It requires organizations to support environmental protection, pollution prevention and continuous improvement by establishing an environmental management system，It can also be certified by a third-party certification body，Improve the organization's awareness of compliance and law-abiding，Ensure compliance with regulations and laws，Verify that the organization's management of environmental factors is achieving the purpose of improving environmental performance，While meeting the requirements of relevant parties，Meet the requirements of society for environmental protection。Demonstrate to the outside world the compliance of its environmental management system and environmental management level。