| China's national economic construction has achieved comprehensive development since 1978, GDP is growing annually, economic aggregate has leapt to the fourth in the world; the foreign trade developed rapidly, China has become the world's third major trading nations. In the meantime, local economic shows unbalanced state .Guangdong, Shandong, Jiangsu took up 30% of China's GDP in 2005, Tibet only took 0.001%. The intra-regional structure of China's foreign trade has also been unbalanced, Guangdong took up 30.8% of China's foreign trade volume in 2006, it was as 2285 times as Tibet's. Most of the articles about the unbalance of the intra-regional structure of China's foreign trade focus on the commodity composition ,mode structure ,or the external regional structure , the study on the unbalance of the intra-regional structural is rare. There are almost no research on the relationships between the unbalance of the intra-regional structure of China's foreign trade and the regional income disparities. Therefore, this paper divides China into the eastern, central, western and northeastern regions, measures the regional and the intra-regional trade disparities and the income disparities respectively , explores the relationships of the two issues using the empirical research methods and using the data of China's 31 provinces from 1981 to 2005 .The paper is divided into four parts besides the foreword and epilogue:Part One reviews the research on the unbalance of the intra-regional structure of China's foreign trade and the regional income disparities, analyzes the state and weaknesses of these research, and shows the characteristics, innovation and significance of this paper .Part Two analyzes the current states of the unbalance of the intra-regional structure of China's foreign trade using the ratio of dependence on foreign trade ,H index, Theil index. We find the regional disparities of the four areas is widening ,and the intra-regional disparities is reducing.Part Three analyzes China'regional income disparities using Theil index, and find the disparities are reducing at first, and then showing a widening trend. The four areas'regional disparities has been the main factor affecting China'regional income disparities, and the intra-regional disparities is the main factor of China's intra-regional income disparities.Part Four analyzes the long term relationships between the unbalance of the intra-regional structure of China's foreign trade and the regional income disparities using cointegration test, and find that there exists positive correlation. |