With the growth of the earth's population and the development of social economy, the pressure of human activities on the environment is increasing, and the contradiction between man and nature is increasing. Although countries around the world have made some achievements in ecological environment construction, environmental degradation and ecological destruction and the environmental disasters and ecological disasters caused by them have not obviously slowed down. Global ecological problems related to human security, such as global warming, rising sea level, the emergence and rapid expansion of ozone hole, and the sharp decline of biodiversity, have repeatedly sounded the alarm for human beings: it is urgent to maintain ecological security.
Ecological security is the degree to which human beings are protected from ecological destruction and environmental pollution in production, life and health, and it is the warning line of life and health. Therefore, the establishment of ecological security system is an important issue related to human life and health, which can not be ignored.