The utility model relates to a limiting lock, a casing transshipment pallet provided with the limiting lock, and a casing transshipment dolly provided with the limiting lock. The limiting lock comprises a lock base and a lock bolt. The lock bolt and the lock base are in guiding movable cooperation with each other along the height direction of the lock base. The lock bolt can be set at a protrusion position and a retraction position. At the protrusion position, the lock bolt moves to the top of the lock base along the guiding movement stroke thereof. At the retraction position, the lock bolt moves to the bottom of the lock base. The lock bolt is provided with a hinged end and a keep-off end, wherein the hinged end of the lock bolt is used for being rotatably matched with the lock base, and the keep-off end of the lock bolt is configured to extend out of the lock base. When moving to the protrusion position, the lock bolt is set at a keep-off position, wherein the keep-off end is driven to rotate towards the lateral direction of the lock base to realize the keep-off and limiting effect on to-be-blocked articles. The lock bolt can also be set at a releasing position, wherein the keep-off end is driven to rotate along an opposite direction so as to release the keep-off and limiting effect on corresponding articles. The lock base is provided with a lock bolt positioning structure used for keeping and limiting the lock bolt along the rotation direction of the lock bolt so as to keep the lock bolt at the keep-off position. The above limiting lock can be conveniently locked and unlocked, so that the transshipment of articles is facilitated.