A method for temporary password management, including: obtaining a first temporary password entered by a user; matching the first temporary password with temporary passwords in a valid temporary password pool; if the matching succeeds, performing an unlocking operation; moving a second temporary password from the valid temporary password pool to an invalid temporary password pool, the second temporary password being a temporary password matching the first temporary password in the valid temporary password pool; when a temporary password having a storage time exceeding a first time length threshold exists in the invalid temporary password pool, moving the temporary password in the invalid temporary password pool having a storage time exceeding the first time length threshold back to the valid temporary password pool.