The service life and cost of high-pile wharf in sea water depend on the design and construction of anti-corrosion for steel pipe piles and reinforced concrete structures.Unsuitable anti-corrosion for the wharf will cause destruction to the structures.Through the application of sacrificial anode method cathodic protection system for berth No.69 of industrial port in Yanbu,Kingdom of Saudi Arabia,we analyze the design principle for the cathodic protection system of high-pile wharf,and compare the applicability,parameters,and construction method of three different anti-corrosion products,including aluminum base blocks,zinc net,and zinc slab.The cathodic protection system is optimized by research,comparison and selection of methods in the process of implementation.The optimized cathodic protection system is safe and reliable,installation convenience,easy maintenance,and controllable cost,which obtain the excellent results.