Abstract: The world’s drilling technology is increasingly developing towards informatization and intellectualization.In this paper,a digital drilling mode is constructed to fulfill the need of drilling technology development.The illustrates the method to build a digital drilling team from the following aspects as the well site information collection facilities,the well site network environment,the well site information collecting and processing software,the well site engineering monitoring software,etc.,The structure of the drilling data center is also expounded in detail,such as database design,data direction,data loading,and data releasing,etc.,The drilling design system,the remote drilling monitoring system,the bottomhole track controlling system,and the expert system are discussed as the components of the decision-making assistant.What’s more,the field application of this method is briefly introduced in addition to theoretical research.The research results are the basis to construct digital oilfields in China and will promote the development of information technology in drilling industry.