Abstract: Abstract：The Chinese Continental Scientific Drilling (CCSD) is a national key scientific and engineering project of China. During the project work, partnering researchers from all over the world work together at remote drill sites and in laboratories at their institutions. There are three different but connected computer networks located in Beijing and the Donghai drilling site, Jiangsu Province. This article briefly introduces the demand analysis, network topology and management information system of this project, proposes an integrated plan for the management information system based on the mixed C/S and B/S structure and sums up related experience in the design, building and maintenance of this complicated network.