According to the engineering characteristics of Maoming Bohe new port general-purpose wharf and based on the application mechanism of the perforated caisson structure,we analyze its adaptability to this engineering,and put forward the scheme for the perforated caisson and the structural measures for realizing perforation and improving the wave-breaking effect.According to the model experiment result,we analyze the effect of the perforated caisson on wave overtopping and reflecting.The rationality of elevation of wharf apron is verified.