On the background of cultural industries development, the study on spatial agglomeration of China's cultural industries has theoretical and practical significance. In this paper, the spatial agglomeration degree of eleven cultural industries of 31 provinces in China is estimated and analyzed from the region and industry by the index of E-G and CR. Using the grey correlation method, the hypothesis that spatial agglomeration of cultural industries may promote the economic growth is tested. And the hypothesis that the per capita GDP, location and abundance of cultural resources are important factors of spatial agglomeration of cultural industries is also tested by the Count Model. Finally, some suggestions are pointed out.