The utility model discloses a caisson structure of adaptable big wave, connecting arch baffle, the pier inboard arch baffle of side and right side including the inboard arch baffle of end to end's breakwater side, left side and connecting the arch baffle, the vault direction of four arch baffles all forms one and holds the storehouse check in the caisson, the outside that holds the storehouse check is equipped with respectively that corresponding breakwater side outside arch baffle, the left side outside are dull and stereotyped, pier side outside flat board and the right side outside are dulland stereotyped, the bottom that holds the storehouse check is equipped with the bottom plate, it is dull and stereotyped that the bottom plate extends to left side outside flat board, pier side outside flat board and the right side outside to the outside. The utility model provides a pair of the concrete quantity is saved to a certain extent to adaptable big wave and do the jumbo size caisson structure of taking the arch sheet of pier and breakwater simultaneously, practices thrift the cost, is worth the popularization.