Abstract: The gathering pipeline networks over oilfield involve in a great number of data and interdisciplinary contents, which make relevant management difficult. For better management and utilization of the data and professional operation, the Oracle Database, a large data control platform and programming technology like C++ are used on the basis of advanced 3D visualization technology (skyline) to research the digital management for the gathering pipeline networks in oilfield in the light of the characteristics of multiple factors, vast areas and difficult management on the gathering pipeline networks in oilfields. This paper combines with GIS technology and knowledge in relation to gathering pipeline networks to describe the establishment about the geographic information system database for the gathering pipeline networks and the realizing process of digital management functions in editing, inquiring, analyzing and visualizing for the digital management system of gathering pipeline networks. Some achievements made in digital management system for gathering pipeline networks in an oilfield of Northern Shaanxi Province are demonstrated.