In recent years, with the arrival of the era of mobile Internet, the “pipeline” crisis of telecom operators began to highlight, and tends to be serious. To avoid channelization, the leading telecom industry proposed successively the development strategy of “intelligent pipeline” on mobile Internet. In this context, the pipeline capacity requirements are analyzed, and the concept of 3D pipeline are put forward, then the nature of pipeline, such as extensity, systematicness and openness, are analyzed. Secondly, this paper also researches the method (add, subtract, multiply and divide) of pipeline. Finally, an application model of 3D pipeline is proposed.