Abstract: Address the fact that no specific method currently used in domestic weld pipe-making circles for evaluating quality of the forming groove for light-wall weld pipes,it is proposed to adapt the analysis method to evaluate and optimize the said groove as designed from three visual angles during the billet formation process,i.e.,the front view,the top view and the spacious view.Thanks to the said analysis method,different solutions for the groove design of a same type of weld pipes can be compared,and then optimized,and finally the best one is selected.