A method for obtaining information, the method being applied to a terminal that does not have a SIM card deck reserved for a SIM card, the method comprising: reading (101,201,301) certification information stored in a smart card of an external device in a preset storage manner comprising at least one of NFC tags using short-range wireless communication technology and QR codes, the certification information comprising authentication information provided by an operator; said reading comprising reading the NFC tags in the smart card to obtain the certification information stored in the smart card by using the NFC technology if the preset storage manner comprises NFC tags; and reading the QR codes in the smart card to obtain the certification information stored in the smart card by using the QR code scanning technology if the preset storage manner comprises QR codes; storing (102,202,302) the read certification information in a memory of the terminal; and obtaining (103,203,304) corresponding services according to the certification information stored in the memory; wherein the certification information stored in the memory of the terminal has two or more items each comprising authentication information provided by operators at different geographical regions and before obtaining corresponding services according to the certification information stored in the memory, the method further comprises: attributing the two or more items to the geographical regions of the operators that provided their respective authentication information; displaying the two or more items along with their respective geographical regions; receiving a selection signal for selecting prescribed certification information in the memory; said obtaining corresponding services according to the certification information stored in the memory comprises: reading the prescribed certification information stored in the memory according to the selection signal; and obtaining corresponding services according to the read certification information. reading (101,201,301) certification information stored in a smart card of an external device in a preset storage manner comprising at least one of NFC tags using short-range wireless communication technology and QR codes, the certification information comprising authentication information provided by an operator; said reading comprising reading the NFC tags in the smart card to obtain the certification information stored in the smart card by using the NFC technology if the preset storage manner comprises NFC tags; and reading the QR codes in the smart card to obtain the certification information stored in the smart card by using the QR code scanning technology if the preset storage manner comprises QR codes; storing (102,202,302) the read certification information in a memory of the terminal; and obtaining (103,203,304) corresponding services according to the certification information stored in the memory; wherein the certification information stored in the memory of the terminal has two or more items each comprising authentication information provided by operators at different geographical regions and before obtaining corresponding services according to the certification information stored in the memory, the method further comprises: attributing the two or more items to the geographical regions of the operators that provided their respective authentication information; displaying the two or more items along with their respective geographical regions; receiving a selection signal for selecting prescribed certification information in the memory; said obtaining corresponding services according to the certification information stored in the memory comprises: reading the prescribed certification information stored in the memory according to the selection signal; and obtaining corresponding services according to the read certification information. attributing the two or more items to the geographical regions of the operators that provided their respective authentication information; displaying the two or more items along with their respective geographical regions; receiving a selection signal for selecting prescribed certification information in the memory; said obtaining corresponding services according to the certification information stored in the memory comprises: reading the prescribed certification information stored in the memory according to the selection signal; and obtaining corresponding services according to the read certification information. reading the prescribed certification information stored in the memory according to the selection signal; and obtaining corresponding services according to the read certification information.