The temporary wave elimination measures for construction area were developed to deal with technical problems in the settlement of steel cylinder structure.Four types of floating breakwater with different principles were proposed to attenuate wave:floating barge with rigid wall,floating barge with flexible wall,water bag raft and V-shaped water bag group.A series of experiments were carried out to compare the wave transmission coefficient of the floating breakwaters.The influence of wave period and angle on wave attenuation performance was analyzed .The results showed that V-shaped water bag group with angle of 60° had a better attenuation performance than the other floating breakwaters.