Considering to the breakwater projects at Maoming Bohe New Port area having been hit by four typhoons with large loss during the construction period,and the loss rate reaches about 5% of the sum of both the construction cost and period by the contract.We systemically analyze and carefully observe the destruction scene by typhoon,and find the basic route for the typhoons to destroy the breakwater:the huge wave breaks over the outer slope and crashes to the top of the breakwaters with both huge potential and kinetic energy,even both internal and outer slopes are basically protected,and they can also crumble the inside top and bring to the breakwater to collapse one section by one,for it becomes the weakness.Thus according to dynamically optimized precaution schemes against typhoon,we use the local stones with large size to pave on the top so as to strengthen it integrally,we increase its capability to withstand washing.It is counted that the loss rate both of the construction cost and period by the latter two typhoons greatly lower than that by the first two typhoons,and it has the obvious ettect and the beffer guide to the outstanding construction.