The invention belongs to the field of traffic transport planning designing and management technology software development, and provides a harbor road network traffic intelligent predetermination method based on generation point-attraction point, for the purpose of providing a method which meets harbor road characteristics and requirements, and can be used for quickly predicting various road traffic amounts through harbor throughput, and evaluating and improving a plan. The technical scheme adopted in the method is as follows: the harbor zone road traffic intelligent predetermination method based on PA and the harbor throughput comprises the following steps: predicting planned yearly throughput of a harbor; according to the predicted throughput, generating a node traffic amount; by combining with the utilization form of land, generating a P-A matrix; converting the P-A matrix into an O-D matrix at a traffic distribution stage; then based on the O-D matrix, by taking into consideration the capacity constraints of the harbor nodes and harbor road networks, establishing a flow distribution model, the distributed traffic amount being divided into two periods, i.e., a general period and a peak period; evaluating the traffic state of a road, the evaluation aspects comprising the constraints of each harbor node and a harbor zone road roadlock function. The method provided by the invention is mainly applied to traffic transport planning and designing.