The floating breakwater is a kind of important structure in ocean engineering,which is economical and environmentally friendly.This paper expounds firstly the development process of the marine floating breakwater,then summarizes the latest research results of floating breakwater at home and abroad,and demonstrates the experimental research and numerical simulation of the structure type of floating breakwater.According to the lower part of the floating breakwater with or without damping structures,the structure is divided into two types,i.e.box-plate type and plate-resistance type.This paper mainly discusses the problems and shortcomings of the present research,and makes a prospect for the future research direction of floating breakwater structure from the aspects of durability,design standards and new materials,etc.