Abstract: Land desertification has been clearly identified as the most serious global environmental problem amongst a series of environmental crises. The essence of the problem is a human issue， and as a means to regulating human behaviors towards land， the international environmental legislation of land desertification has significant public benefits. The purpose is not only to protect the basic living environment of human beings， but also to maintain and improve the global natural environment. Therefore， in order to ultimately realize the mankinds long-term survival benefits， we must review our inherent environmental thinking and ethical views and be fully aware of the natures right to survival. This not only constitutes the ethical basis of environmental legislation， but also explains its value and the source for its perfection.

Key words: land desertification, land value, land ethics, international environmental law