With the technological developments of offshore platform and modularization factory, process pipelines become more and more complex, and account for an increasingly high proportion. How effectively the three-dimensional (3D) model data are transferred to the fabrication design has become a common problem. Traditionally, computer-aided design (CAD) software is used for pipe cutting, but because this method has low work efficiency and cannot avoid manual errors, it is not able to meet the requirements of short construction period and strict material control. We introduce a new method for pipeline breaking using the Spoolgen software, and briefly give the spool precast management workflow performed with construction management system (CMS). This research will provide reference for the fabrication design of offshore oil platform and modularization factories.