Abstract: Longing for harmony and a harmonious world is not unique to China but universal to mankind. In the context of WTO, the idea of harmony can be interpreted as: the concept of equality inherent in the “nondiscrimination principle”, harmonious balance principles of lawvalue conflicts, and a special and differential treatment of the developing countries, esp. the least developed members. Doha Ministerial Declaration manifests the deeper development of the concept of harmony of WTO, and makes clear that as the most important and effective current international economic rules, WTO system makes a point of the final pursuit of the free, equal, orderly and harmonious development of world economy.

Key words: harmony, harmonious world, WTO, the Doha Round, special and differential treatment, balanced outcomes