A method for selecting a network, including: selecting, from a Public Land Mobile Network (PLMN) list of a mobile terminal, a PLMN and a corresponding Radio Access Technology (RAT) type, and performing network selection, wherein the PLMN list contains a PLMN number and a RAT type corresponding to the PLMN. The network selection may include: searching in a comparison table if the selected RAT type corresponding to the PLMN is supported by the mobile terminal, wherein the comparison table contains a PLMN number, a RAT type corresponding to the PLMN, and a duplex mode corresponding to the PLMN and the RAT type; and selecting a network according to a duplex mode which corresponds to the selected PLMN and the selected RAT type, if the selected PLMN and the selected RAT type are contained in the comparison table. The speed of network selection is increased greatly, and power consumption is lowered.