Abstract: in this paper,the 3 spillover theories were used to analyze the development problem,some theories include GDP spillover model,knowledge spillover model and spatial interaction model,the spilover machine among 3 areas is in discussion.The modeling and simulation show: 1.The economic contact of 3 districts in China is severely,and the GDP increase to other region is promotive function.On the average meaning,western area is the most positive in 1990’s,until 1997 eastern area become positive get up. 2.On the average meaning,East China is a center of knowledge spillover and sink of population current,so that,China need develop East China in knowledge based economy. 3.Under regions spilling mightily,western China and center China must establish new specialization economy,but to be imitative of East China.

Key words: China, 3 areas, GDP-spillover