The present invention provides an Internet IP address resource collection and centralized management method which comprises the steps of (S1) IP address acquisition and planning and management is carried out, (S2) IP address application, approval and distribution are carried out, (S3) a system automatically generates a current network IP address resource pool through collecting current network IP addresses, through the online acquisition of IP resource distribution and use information, service, equipment loopback and interconnection address use conditions are focused, the IP address utilization rate is analyzed and counted, and a classification IP distribution audit report is outputted, and (S4) reuse IP addresses are distinguished through the multi-attribute association of the current IP addresses, the centralized management of the reuse IP addresses is realized. A closed-loop electronic processing process of IP address planning-application-distribution-approval-recycling is established, through the automated collection, analysis and recycling of an IP resource, the fine management of the IP resource and the effective utilization of an address resource are realized, the management working efficiency of the IP addresses are improved, and the operation and maintenance cost is reduced.