A carrier selection method for multicarrier in a GSM EDGE radio access network, GERAN, system, comprising: acquiring an absolute radio frequency channel number, ARFCN, for each carrier of N carriers allocated to a receiving end and in each frame of a radio block, wherein N is a positive integer, and N≥2; selecting, from the N carriers, the first carrier in a preset direction as a first anchor carrier according to a preset direction, and searching within a search range of the first anchor carrier according to the ARFCN of each carrier of the N carriers in each frame of the radio block and a maximum carrier frequency spacing supported by the receiving end, to determine a carrier set of the first anchor carrier, wherein the search range of the first anchor carrier is from a next carrier that is of the N carriers in the preset direction and adjacent to the first anchor carrier to the last carrier of the N carriers in the preset direction, and the preset direction is an ascending-order direction of carrier IDs of the N carriers; determining a second anchor carrier, and searching within a search range of the second anchor carrier according to the maximum carrier frequency spacing supported by the receiving end to determine a carrier set of the second anchor carrier, wherein the second anchor carrier is a next carrier that is of the N carriers in the preset direction and adjacent to a carrier at the most front in the preset direction in the carrier set of the first anchor carrier, and the search range of the second anchor carrier is from a next carrier that is of the N carriers in the preset direction and adjacent to the second anchor carrier to the last carrier of the N carriers in the preset direction; and selecting, from the carrier sets of anchor carriers of the N carriers, at least one carrier set as a carrier selection result, wherein the anchor carriers comprise the first anchor carrier and the second anchor carrier. acquiring an absolute radio frequency channel number, ARFCN, for each carrier of N carriers allocated to a receiving end and in each frame of a radio block, wherein N is a positive integer, and N≥2; selecting, from the N carriers, the first carrier in a preset direction as a first anchor carrier according to a preset direction, and searching within a search range of the first anchor carrier according to the ARFCN of each carrier of the N carriers in each frame of the radio block and a maximum carrier frequency spacing supported by the receiving end, to determine a carrier set of the first anchor carrier, wherein the search range of the first anchor carrier is from a next carrier that is of the N carriers in the preset direction and adjacent to the first anchor carrier to the last carrier of the N carriers in the preset direction, and the preset direction is an ascending-order direction of carrier IDs of the N carriers; determining a second anchor carrier, and searching within a search range of the second anchor carrier according to the maximum carrier frequency spacing supported by the receiving end to determine a carrier set of the second anchor carrier, wherein the second anchor carrier is a next carrier that is of the N carriers in the preset direction and adjacent to a carrier at the most front in the preset direction in the carrier set of the first anchor carrier, and the search range of the second anchor carrier is from a next carrier that is of the N carriers in the preset direction and adjacent to the second anchor carrier to the last carrier of the N carriers in the preset direction; and selecting, from the carrier sets of anchor carriers of the N carriers, at least one carrier set as a carrier selection result, wherein the anchor carriers comprise the first anchor carrier and the second anchor carrier.