Abstract: Analyzed in the paper is the advanced design philosophy of the electric control system of the imported equipment that is incorporated into the large-sized weld pipe production line,covering such aspects as the integrity of the system’s hard ware and software,adoption of the safety relay,setting up of the soft limiter for the moving part,and the failure alarming function,etc. As a result,the gap between the advanced imported system and the similar one as made at home is identified,and then relevant suggestions are proposed. The analysis result also leads to such a conclusion that the approach to the breakthrough for the home-made equipment to be up to the world first-class manufacture level is enhancing the design level of the electric control system as soon as possible.