Because the interpretation of seismic data is not unique, seismic properties of typical rock samples from Jiangxi and Fujian Provinces were studied to better explain seismic data in South China in terms of the crustal structure and composition. The P-and S-wave velocities of 5 rock samples were measured using MTS-815 Rock and Concrete Mechanics Test System. The results indicate that seismic velocities of the samples increase with increasing pressure, but decrease with increasing temperature. At the same pressure and room temperature, the P-and S-wave velocities gradually decrease from marbleized limestones, through granodiorites, K-feldspar granites to siltstones. Compared with felsic rocks, the limestones, dolomites and marbles are characterized by high P-wave velocities, and high Vp/VS and poison, s ratios, which provides a way to search carbonate basins beneath the granite regions in South China.