Abstract
The anode design technique used widely by the cathodic protection with the galvanic anode system such as the marine steel structures was explained. Firstly, it introduced the design technique with a present galvanic anode system, and the problem was arranged. Next, the ideal way of the design technique for based on the electrochemistry further the enumeration of an overseas design method, the difference, and the example was considered. Finally, it proposed the design technique that conformed to the realities and was able to be applied on the site by adding some corrections to a present design technique.