Steel pipe piles are very important steel structures in the construction of seaports and offshore facilities. As load-bearing components, they play a huge role in complex environments. Compared with concrete piles, steel pipe piles have higher bearing capacity and resistance to compression, tension, shear force, earthquake and wind loads. At the same time, their specifications are diverse and can meet different engineering needs. The diameter of steel pipe piles can reach 2100mm, the wall thickness ranges from 6.9 to 25mm, the pile length is easy to adjust, the construction progress is fast, and the comprehensive benefits are high. However, steel pipe piles are susceptible to corrosion under natural conditions, especially in environments such as oceans and rivers, so anti-corrosion measures are essential.