A private equity investment network can be composed of nodes and edges which represent the regions and the private equity relationship between regions respectively. This paper analyzes the network's density, average path length, clustering coefficient degree, betweeness, closeness centrality and its core-periphery structure to investigate the characteristics of the crossregional PE investment network. The result indicates that China's PE investment varies from regions; whether they are in the core area or periphery area, enterprises are more likely to invest in or be invested by enterprises in the core area.