The utility model discloses a limit structure and redox flow battery pile for redox flow battery pile, the pile is including the feed liquor board that from top to bottom compresses tightly in proper order I, battery pack and feed liquor board II, feed liquor board I is fixed through the screw rod with feed liquor board II, at least battery pack's a side is equipped with at least one and is used for injecing the limit structure of battery pack position, limit structure is located feed liquor board I and feed liquor board between II, the limit structure fastening is in the periphery of screw rod. The utility model discloses pile part that limit structure can avoid the long -time operation of redox flow battery to lead to effectively sinks, the dislocation of electrode frame, accidents such as battery leakage, short circuit, thus improved redox flow battery's reliability and life -span.