Compared with MPP pipes with the same specification and ring stiffness requirements, the material costs should be saved by 40%~70%. MPP power bellows has high ring stiffness due to its special single wall corrugated structure design and materials with high elastic modulus. During construction, the outside of the pipeline does not need to be sealed with cement, and it can be directly backfilled with pipe pillow and fine sand, which greatly reduces construction dust and construction cost. MPP power bellows has smooth inner and outer surfaces and low friction coefficient; Its inner surface is a single wall corrugated structure, which is in point contact with the cable, and the drag resistance is small, reducing the construction difficulty.