Liaohe ultra-large bridge is designed as a cable-stayed bridge with a main span 436 m, double pylons and double cable planes, and it is located at the Liaohe river estuary. For the concrete structures’ durability of this project, we shall consider not only the dual corrosions by the sea water and the fresh water, but also the freezing and thawing damage to the durable influence. Therefore, an extremely high requirement was need for the concrete structures’ durability. Connecting with the engineering example, this paper emphatically introduces the application of high performance concrete, the impressed current cathodic protection, the anticorrosive coating, etc. for increasing the durability of concrete.