Abstract: In this work, an optimization method for the design of the complex cross section of winding wall tube was proposed to obtain the optimal allocation of stiffness, structural size and pipe weight of the diameter section ring. Taking the performance requirement and optimal economic benefit in engineering design as an optimization objective and the requirements for manufacturability and structural dimension rationality as the constrained conditions, the design of the buried polyethylene winded wall pipe was optimized on the basis of the NSGA-Ⅱ. With this methodology, the optimal section type and size of pipeline could be achieved under the conditions that the nominal diameter, material modulus and ring stiffness of the pipeline were determined. This method was testified to meet the requirement for the selection and optimization design of winding structure wall pipe with s complex cross section in engineering design and also could provide some references for the optimization design of other pipelines.