Reasonable anchorage area location can ensure the safety of ship mooring.At the same time,it can optimize the layout of the port and improve the efficiency of port operation.This paper summarizes the current methods of solving the anchorage area location problem,and analyzes the application of GIS technology in location problems.The factors influencing anchorage area location are determined and comprehensive evaluation index system is established in this paper.The weights of each index are determined by AHP and the comprehensive score of each grid is obtained by the applicability evaluation model of sea area.Based on several constraints like marine functional zoning,a feasible scheme set of anchorage site selection is obtained and the optimal scheme is selected out by the method of optimization.Through an example analysis,it is proved that the model proposed in this paper is reasonable and feasible,and can be used as a method to optimize the anchorage area location.