Industrial agglomeration is a very widespread economic phenomenon.The demonstration analysis indicates that there has been obvious geographic agglomeration in the secondary industry in China.Some industries show higher degree of industrial agglomeration.The agglomeration level is rising continuously as a whole and there is a tendency of geographical distribution of industries towards eastern regions.How to promote industrial agglomerating in the backward regions and transferring some mature industries from developed regions to backward regions are what we will study in the future.