Double-key locking cam

A double-key locking cam comprises a lock cylinder sleeve and a lock cylinder mounted in the lock cylinder sleeve, wherein an intermediate sleeve is arranged between the lock cylinder and the lock cylinder sleeve; a first upper marble hole, an intermediate marble hole and a lower marble hole which are communicated with each other are respectively formed on the lock cylinder, the intermediate sleeve and the lock cylinder sleeve; the first upper marble hole, the intermediate marble hole and the lower marble hole are communicated with each other to form a through hole in which a marble group is mounted, under the propping and pushing of a key or under the action of the tension spring, the marble group does upward or downward moment in the marble holes which are communicated with each other, the locking cam is required to be equipped with two different keys and can only be opened by the two keys in sequence, in the actual application, a key is allocated for one person, the locking cam can only be opened when the two person are present at the same, so that a mutual constrained relation exists and the security is enhanced.