Abstract: By reviewing the response of warship structures subjected to a close underwater explosion，the theoretic，experimental and numerical study developments on loading of close underwater explosion were illustrated，and the fluid-structure interaction and response of plates，cylindrical shells，beams and warship structures subjected to a close underwater explosion were summarized. Four aspects that should be studied urgently were presented as follows：characteristics of underwater explosion loading in complex boundary conditions，simulation of impact destroy of structures，comparability of models test，and response of new materials and structures to close underwater explosion.