Coded lock with double passwords

The invention discloses a coded lock with double codes. The coded lock comprises a code base, a code shaft, a locking piece, a character wheel assembly, a lock body, an operation piece, a lock shaft and an unlocking elastic piece. According to the character wheel assembly, the management lining is additionally arranged on the basis of a traditional common lining, the first unlocking groove and the second unlocking groove are formed in the outer side end faces of the management lining and the traditional common lining respectively, unlocking can be achieved when the locking protruding blocks of the password shaft are aligned with the unlocking grooves one by one, and the function of unlocking through two passwords is achieved; wherein a common password corresponding to the common bushing can be conventionally used by a user, and a management password corresponding to the management bushing can be used for emergency so as to cope with special situations such as loss of the common password; the common password a