The invention discloses a public data network oriented multi-data plane realization method. A public data network is based on an IP telecommunication network system, wherein a plurality of data planes are realized by generating a virtual network taking a plurality of data plane identifiers as characterization in the public data network; the virtual network is generated through the configuration of a management plane or the signaling of a control plane; after the virtual network is generated, the resource of each link is determined according to a flow/flow direction table and the supported service type among all ports of the virtual network; and the withdrawal is performed through the configuration of the management plane or the signaling of the control plane after the use of the virtual network is finished. The public data network oriented multi-data plane realization method can aim at the actual demand of different customers or operators to open up a plurality of mutually independentdata planes respectively, thereby laying technical foundation for the transition of telecommunication service toward a next generation network.