The manifestation of relationship between fact and value problem in the ecological economics is the relationship between values and the view of nature. The ontology of ecological economic ethics is based on human relations, its moral appeal is golden mean; it insists the extension of altruism on the issue of ethical relationship between man and man, its basic principle is altruism on the basis of egoism. The value relationship between man and nature in ecological economics follows the principle of unity of opposites, the ultimate goal and fundamental power is sustainable development and the basic specification of abstention and moderation.