Using the high-tech industry and its sub-sectors data from the Statistical Yearbook of China's high-tech industry and the China's Statistical Yearbook (1995-2010), this paper empirically analyze the contribution of high-tech industry' five sub-sectors to the high-tech industries in the respective regions (the eastern region, the central region and the western region). Studies have shown that, in different regions, the contribution of high-tech industry' five sub-sectors varies and high-tech industries have different dominant industries. Finally, some policy recommendations are proposed.