Based on the analysis of the resource potential of the coastal tidal flats and the present situation of the reclamation of the coastal areas in Nantong,the paper summarizes a series of results brought by the tidal flat reclamation in the area.The research results show that the strengthening of beach reclamation in Nantong coastal areas is conducive to expanding the space for fishery development and raising the level of fishery development,speeding up the rational distribution of land and sea industries,promoting the industrial transformation and upgrading the port infrastructure,and promoting port industry development and strengthening coastal tourism.