MPLS-VPN Qos routing method, device and equipment

The invention provides an MPLS-VPN Qos route selection method, device and equipment, and the method comprises the steps: obtaining a target path between a source network node and a target network node, generating an MPLS-VPN route based on the target path, and enabling the target path to pass through the source network node, an intermediate network node and the target network node; if the intermediate network node corresponds to at least two downstream network nodes, determining first information strength of the intermediate network node and the downstream network nodes based on the QoS parameters; determining second information intensity of the intermediate network node and the downstream network node by adopting a flower pollination algorithm; determining target information intensity based on the first information intensity and the second information intensity; selecting an optimal downstream network node based on the target information intensity of the intermediate network node and each downstream network