This Article Considers Analysis Procedures for Longitudinally Submerged Arc Welded Steel Pipes(LSAW), Via Control of high forming accuracy and efficiency as well as balanced distribution of forming stress. J-C-O manufacturing technology is developed in the 1990s as a pipe forming process, the process of moulding process is the first major steel mill edge (or planning) after pre-bending by longitudinal side, and then type → J→ C→ O-order moulding, stamping each step are the basic principles of three-point bending. Considered as one of the most significant moulding process. The deformation characteristics of JCOE forming are analysed, in which the geometry of the formed pipe, residual stress distributions and effects of process parameters on JCOE forming quality can be obtained. LSAW (Longitudinally Submerged Arc Welded Steel pipes) in leaflets plate as raw material, the steel plate in the mould or moulding machine pressure (volume) into using double-sided submerged arc welding and flaring from production. J-C-O forming process based on the help of the new technology the ideal LSAW forming pipe is obtained in only 13 steps. The project aim is to effective approach to improve welding pipe forming quality and increase the strength of joint and productivity is significantly increased.