Selecting route method based on strategy

In procedure of route selection, the method considering conditions such as service priorities and bandwidth resources carries out tactical route selection so as to meet different service requirements. The method sets up strategy of route selection pointed to signaling route and/or service route in advance. Based on strategy of route selection of service route, resource manager selects out service route of meeting strategy of route selection from service routes of meeting route conditions; and/or based on strategy of route selection of signaling route, resource manager selects out signaling route of meeting strategy of route selection from signaling routes of meeting route conditions. Based on different conditions of each service and physical circumstance of network. The method is capable of selecting out route of meeting operation quality of service. Features are easy of implementation, easy maintenance, and applicable to network in any scale.