Durability of concrete structures is a serious problem which requires to be resolved quickly.Research of accelerated durability will get twice the result with half the effort.In this paper the contents of accelerated durability study are introduced,design principles of accelerated durability experiment are put forward as well as analysis methods of test data.The basic principles of test criterion of accelerated durability are discussed.The further experiments and theories of accelerated durability will be studied based on the work.