Before forming the double-sided submerged arc welded spiral welded steel pipe, the strip steel was straightened, cut, scraped, surface cleaned, transported, and bent. The use of an electric contact pressure gauge controls the pressure of the cylinders on both sides of the conveyor belt, ensuring the smooth transportation of the steel strip. The weld seam of double-sided submerged arc welded spiral welded steel pipe is uniformly distributed on the circumference of the spiral pipe, with high dimensional accuracy and strong strength.