Abstract: Along with the high quality development of such domestic industrial fields involving petroleum,nuclear power,new energy,automobile and chemistry,etc.,the requirements for product performance and quality of the stainless steel weld pipe are becoming more and more stringent. In order to meet the customer requirements for the hi-grade fluid transport purposed stainless steel weld pipe,the enterprise engaged in making such pipes has built up a quality information network as covering the production line and the management units via promoting informative,intelligent and centralized quality management and taking the enterprise's big data processing system as the center,which realizes the close-loop management of quality information as involving acquisition,transmission,analysis,improvement and evaluation of the data,and the optimization of the whole process production technology as from stainless steel melting,steel plate rolling to pipe making via welding. Moreover a systemized and standardized "all staff,all procedures,all key elements and all processes" quality control process is by means of such scientific management methods as "precision planning" "self-innovation" "process control" and "further detailing inspection items",resulting in quality improvement and consistent supply of the hi-grade stainless steel weld pipe.