On June 15, 2004, Professor Zeng Lingliang held a special lecture entitled "The Latest Trends of Regional Trade Agreements and their Negative Impacts on the Doha Development Agenda - China Should Have Countermeasures" in teaching building five to teachers and students at School of Law. Professor Zeng Lingliang first talked about the strong development momentum of regional trade agreements. Recently, WTO members were generally keen to conclude regional trade agreements, and their number has increased dramatically, surpassing any period in history. The connotation of regional trade agreements has undergone new extensions: investment, competition, environmental and labor standards, and so on. Moreover, its new type has emerged and appeared in the form of crossing regions, continents and even oceans, breaking through the traditional “strong neighborhood” ties, so that a network of global regional trade agreements is taking shape. The main cause of the regional trade agreement boom was the object that Professor Zeng Lingliang then demonstrated. The driving force of economic and trade interests, the consideration of political and security policies, and the drawbacks of the multilateral trade system itself are the three main causes of this boom. For example, China, Japan, Korea and ASEAN clearly have considerations for maintaining themselves and the security needs of their region. Professor Zeng specifically pointed out that Article 24 of GATT1947 is the "bane" of the weak regulation of the multilateral trading system today. The so-called review and supervision are ineffective, and Article 5 of GATS extends it to the field of service trade. What is more serious is that the number of members of the multilateral trading system is changing with the times and becoming more and more complicated. The negotiating issues are becoming more sensitive and the room for compromise is getting smaller and smaller, making multilateral liberalization more and more difficult to advance. What are the negative impacts of regional trade agreements on the Doha Round? Professor Zeng Lingliang pointed out that, first of all, the conclusion of the regional trade agreement distracted the human, material, energy and intelligence of the Cancun meeting before, which made the Cancun meeting fruitless and had a direct impact on the negotiation process of the Doha Round. Secondly, major WTO members are interested in regional trade agreements, especially those of developed countries who use their political, economic and military advantages to break through, divide and rule members of developing countries through regional trade agreements, and have an impact on the theme of the development of the Doha Round. Finally, it fundamentally caused erosion and crush on the Doha Round’s mothership, the multilateral trading system. China’s response to this wave is a question that Professor Zeng Lingliang has been paying attention to. He believes that as an "infant", China should adhere to the principle of multilateralism and bilateralism and abandon the principle of unilateralism. Regional trade agreements can only be a sub-optimal choice. As an expert of the multilateral trading system and the study of regional trade agreements, Professor Zeng Lingliang’s lecture i comprehensive and well-organized, logically rigorous and eloquent, very literary. He not only introduced the latest achievement in the development of regional trade agreements but also pointed out its internal driving factors and historical roots. Moreover, he raised its external negative impact and the direction that China should adhere to, winning the praise of the students.