In October, 1972, the 27th United Nations General Assembly adopted the recommendation of the United Nations Conference on the Human Environment, stipulating that June 5th of each year should be the "World Environment Day" for people all over the world to remember forever. The United Nations system and governments should carry out various activities on this day every year to remind the world of the global environmental situation and the harm of human activities to the environment and emphasize the importance of protecting and improving the human environment. Many countries, organizations and people carry out various activities on the day of "World Environment Day" to publicize and emphasize the importance of protecting and improving the human environment. At the same time, the United Nations Environment Programme publishes an annual report on the state of the world environment and takes practical steps to coordinate the relationship between human beings and the environment. World Environment Day, symbolizing the development of the human environment in the world to a better stage, marks the positive contribution of governments around the world to the protection of human living environment. It correctly reflects the understanding and attitude of people all over the world to environmental problems. In January 1973, the United Nations General Assembly established the United Nations Environment Programme (UNEP), the Council for Environmental Planning (GCEP) and the Environment Fund in accordance with the resolution of the Human Environment Conference. UNEP is a permanent organization, which is responsible for handling the daily affairs of the United Nations in the field of environment, and as the center of international environmental activities, it promotes and coordinates environmental protection at home and abroad.