Abstract: The present invention discloses a method for setting a subscriber routing using traffic information through networks, comprising the steps of classifying a traffic grade deciding the availability of network elements, after acquiring traffic information of the network elements by using a first information of configuration and connection states of the network elements collected for network management through the networks, and by using a second information calculated by assigning weight-value to a predefined each variable of the network elements, selecting a less traffic unit or port by the classified traffic grade in the case of requests for setting a connection routing path for a new subscriber through the networks, and setting final connection routing path by selecting an available subscriber connection a virtual path identifier/virtual channel identifier (VPI/VCI) in a selected unit or port.