20th century is a century of flying be expanding by leaps and bounds development of the productivity, and is a century of ecology environment deteriorated. The appearance of some environmental problems leaded to a scene of global environmental crisis. In order to cast off the crisis and make the sustainable development become ture, scientific development notion must be established, that is to say, insist on regarding human as the root, thought coordinating the relation human and nature, realize the harmony of human and nature, and promote the sustainable development of society and economy.