The invention provides network selection method, equipment and system, wherein the method comprises the following steps: acquiring first indicating information on a terminal supporting single PDN (packet data network) connection or multi-PDN connection; acquiring second indicating information on a base station supporting single PDN (public data network) connection or multi-PDN connection; and selecting an adaptive network according to the acquired first and second indicating information so as to acquire related service. By utilizing the technical scheme, the network resource waste caused as the terminal and the base station are inadaptive when being used as network frameworks of a local export during bearing and building of related service can be avoided, thus improving the system efficiency.