Concrete durability directly affects the safety and use of structures. Therefore，we comparatively analyze the provisions on concrete durability in seawater environment in codes from China，the U.S.，and Europe with regard to the design service life，division of corroded parts of concrete，and durability measures. In this way，we can explore the similarities and differences between foreign mainstream codes and Chinese codes in concrete durability design. The results reveal that the design service life of permanent marine structures such as wharves can be 50 years in all the codes. In addition，the corroded parts of concrete are vertically divided into four different zones in these codes，but there are differences in the durability measures adopted in different corrosion zones，which are mainly manifested in the aspects of cement types，concrete strength，water-binder ratios of concrete，and crack width.