Abstract: An Amphictyony was a league that driven by the religious tie,and it mainly dealt with issues that were related to its sanctuary.The Delphic Amphictyony was the most famous one in ancient Greek history,it originated in the early time of the Archaic Age and disappeared during Roman domination.The Delphic Amphictyony was extremely active in the Classical Age and most events happened in that time were related to it.There was an interaction between the Delphic Amphictyony and the Greek polis politics in the Classical Age.The Delphic Amphictyony provided a political arena for the struggles of poleis on the one hand,but on the other hand,the political game among poleis often brought some changes to its internal structure.There was a balance in the Amphictyonic council in the fifth century B.C,but this balance was broken in the fourth century B.C.The Delphic Amphictyony was manipulated as a political tool by powerful polis.Meanwhile,the third sacred war of the Delphic Amphictyony also changed the political situation.

Key words: The Delphic Amphictyony, The Classical Age, polis politics, Greek poleis