Abstract: Taking the implementation process of the intelligent production & sales management platform of a certain domestic company as the background,and combining the enterprise’s own characteristics,the two key processes of steel pipe manufacturing flow,i.e.,steel-making and pipe rolling are discussed. Also discussed here is the intelligent linkage production management for theses two processes which is regarded as the critical technology issue associated with the intelligent manufacture by the steel tube-making enterprise. Based on the discussion,a elaboration is made,involving the preparation of the steel-making/casting plan,and the processes of how the steel-making/casting plan is automatically converted into the virtual operation schedule of billet-charge for pipe-rolling,and how the billet evaluation in the steel-making performance automatically triggers the said virtual operation schedule of billet-charge for pipe-rolling to be converted into the practical(real)plan. The intelligent linkage production management between the steel-making process and the pipe-rolling process brings about such advantages as faster production cycle,less residence time for the materials as stored in the warehouse,and shorter product manufacture cycle,resulting in minimized delivery time for the customer. It is expected by the co-authors that the summarized information as above mentioned could be used as reference by the peers in the circles.