A street light management method includes: receiving from a server at predetermined intervals and updating at least one of information about a node that is at least one street light, information about a gateway that communicates with the node and the server, and information about a communication channel between the node and the gateway; displaying the node in a corresponding position on a digital map displayed on a screen using position information included in the information about the node and displaying the gateway in a corresponding position on the digital map using position information included in the information about the gateway; and displaying corresponding information in at least one of information display windows on the screen according to the received information or a user operation.