A method for transmitting verification information includes: detecting, by a first terminal, whether a condition for performing a verification operation is satisfied; generating, by the first terminal, a verification information obtaining request if the condition for performing a verification operation is satisfied, where the verification information obtaining request is used to request a second terminal to feed back verification information; sending, by the first terminal, the verification information obtaining request to the second terminal; receiving, by the first terminal, a verification information obtaining response returned by the second terminal, where the verification information obtaining response includes the verification information; and sending, by the first terminal, the verification information to a server, where the verification information is used for the server to verify the first terminal.