The Gaia hypothesis was expressed by James Lovelock in the mid-1960s and published in a book in 1979. (Sean Chamberlin) The ancient Greeks called their goddess of Land Gaia, James Lovelock had taken the name Gaia. idea from ancient Greek and named his hypothesis Gaia. The central theme of the Gaia Hypothesis is that organisms interact with their inorganic environment on Earth to form a self-regulatory system. Expressed most simply as “The Earth is alive”. (Virtual Fossil Museum) If there are some inherent factors harmful to the Earth, the "Gaia" system itself has an anti-return function, which can help get rid of the harmful factors. The Gaia hypothesis contains at least five levels of meaning: first, that a variety of life on Earth effectively regulates the temperature and chemical composition of the atmosphere; second, the impact of the variety of biological organisms on the earth's environment, and in turn affect the biological evolution of Darwin's environment, the two co-evolution; Third, mainly between different organisms and nature are connected by a negative feedback loop, so as to maintain the stability of the ecological state of the Earth; Fourth, consider that the stability of the atmosphere can be maintained not only depends on the biosphere and, in some sense, the biosphere; Finally, a variety of biological regulation of its physical environment is considered in order to create different types of biological optimization of living conditions. The first two layers are called weak Gaia theory, after three for strong Gaia theory. Earth appears to be a “mega-life system.” Of course, there is something called "life" and never refers only to metabolism and reproduction in the usual sense, but rather to an exchange of energy and matter that can be permitted to maintain a stable internal system...... paper...... the first step, we have indeed achieved the expected results; but in the second and third stages there are completely different, unexpected effects, which often cancel out the first result. By repairing their ways, can humans begin to recognize their responsibility to care for the earth and protect the environment? Or did Earth have to take strict measures to punish humanity? Notice that the Earth lived for 4.6 billion years, and from then on, humans disappeared, perhaps in Earth's history, but the moment is fleeting. Overall, the Gaia hypothesis has become an important theoretical basis for the Western environmental movement and the Greens. action. The Gaia hypothesis and its controversial scientific connotation, new Earth observation systems and the Gaia hypothesis caused by the Gaia hypothesis have inspired people in areas such as elaboration and discussion..