Abstract: Provided is a method for acquiring information of network resources connected to ports of network switches. The method includes the steps of: acquiring network resource information including IP address, MAC address, computer name, and workgroup name of the network resources in a network including one or more network switches and a plurality of network resources connected to the switches; acquiring information of the ports of the switches and MAC address information of the network resources connected to ports of the switches; and matching the port-based resource information on the basis of the acquired network resource information and the acquired MAC address information of the network resource information based on the ports of the switches.