This article explores how China joining the World Trade Organization (WTO) affects its agricultural sector at both national and regional levels. The researchers used a detailed model to predict the impacts of China's integration into the WTO, like changes in trade policies and production. They found that China's agricultural and non-agricultural sectors will be influenced by factors like tariff rate adjustments and trade restrictions being lifted. By assessing these changes, the study shows how China's national and regional economies might evolve as it meets its WTO commitments and becomes more integrated into global trade.