Adopts the method of empirical analysis and uses the panel data from 2001—2010 to establish an econometric model to study the influences of the core cultural industries of radio and television industry, the press and publication industry, animation industry and entertainment industry of Changsha-Zhuzhou-Xiangtan urban agglomeration on the regional economic growth of Hunan province. The results of stationary test, cointegration test, least squares estimation and LM test show that: the cultural industry of the urban agglomeration is positively related to the regional economic growth of Hunan province, which give an impetus to regional economic growth; But compared with the culture industry developed areas at home and abroad, the relevant elasticity of the central cultural industries of Changsha-Zhuzhou-Xiangtan is not notable and need to improve.