Considering the characteristics of the built breakwater around the filling zone 6 of Kuantan New Deepwater Port，Malaysia，which is connected to the shore and backfilling sand is easy to accumulate and not easy to loss，we adopt the method of non-cofferdam reclamation by setting silt curtain，which satisfies the environmental requirements of the locality. The results show that non-cofferdam reclamation method is feasible in specific environment，which can control the loss rate，shorten the construction period，meet the requirements of environmental protection，avoid the risk of overseas construction to a certain extent，improve the economic benefit，and be referred for similar projects.