A method for identifying a pseudo base-station, being applicable to a terminal, the method comprising: redirecting , by the terminal, the terminal to a target cell supporting circuit domain business when a first call request is received in a first serving cell not supporting the circuit domain business; sending , by the terminal, a location area update request to a base-station where the target cell is located, when a plurality of location area identities, LAIs, stored do not comprise a LAI of the target cell, wherein the plurality of LAIs are received from a base-station where the first serving cell is located; identifying , by the terminal, the base-station where the target cell is located as a pseudo base-station, when no message responsive to the location area update request is received from the base-station where the target cell is located during a first preset time length and an interval at which the terminal conducts a location area update as indicated by the base-station where the target cell is located is longer than a second preset time length or shorter than a third preset time length, wherein the second preset time length is longer than the third preset time length; storing, by the terminal, frequency point information of the first serving cell and frequency point information of the target cell correspondingly; and redirecting, by the terminal, the terminal to a cell that supporting the circuit domain business other than the target cell based on the frequency point information of the first serving cell and the frequency point information of the target cell which are stored correspondingly, when a second call request is received in a second serving cell not supporting the circuit domain business. redirecting , by the terminal, the terminal to a target cell supporting circuit domain business when a first call request is received in a first serving cell not supporting the circuit domain business; sending , by the terminal, a location area update request to a base-station where the target cell is located, when a plurality of location area identities, LAIs, stored do not comprise a LAI of the target cell, wherein the plurality of LAIs are received from a base-station where the first serving cell is located; identifying , by the terminal, the base-station where the target cell is located as a pseudo base-station, when no message responsive to the location area update request is received from the base-station where the target cell is located during a first preset time length and an interval at which the terminal conducts a location area update as indicated by the base-station where the target cell is located is longer than a second preset time length or shorter than a third preset time length, wherein the second preset time length is longer than the third preset time length; storing, by the terminal, frequency point information of the first serving cell and frequency point information of the target cell correspondingly; and redirecting, by the terminal, the terminal to a cell that supporting the circuit domain business other than the target cell based on the frequency point information of the first serving cell and the frequency point information of the target cell which are stored correspondingly, when a second call request is received in a second serving cell not supporting the circuit domain business. <EOS>