The invention discloses a device for limiting movement of a trolley in a sofa production line. The key point of the technical scheme of the device for limiting the movement of the trolley in the sofaproduction line is that a guide rail is matched with a guide rod arranged on the trolley so that the guiding performance of the trolley in the article transporting process is higher, and a situation that the trolley is deviated from the transporting direction is reduced; a cross rod is clamped in a clamping groove; the clamping groove limits the movement of the cross rod in the vertical direction;a connecting rod abuts against a limiting block and a cross rod is clamped in the clamping groove to limit the movement of the cross rod in the horizontal direction so that the connecting rod and thecross rod are kept in a fixed state to limit the movement of the trolley; and therefore, the trolley cannot move in the process that a worker is conveying an article; two inclined surfaces are convenient for the worker to rotate the connecting rod, the cross rod can be enabled to extrude the inclined surfaces of an inserting block so that the inserting block retracts into an isnerting groove; andthen a purpose of fixing or moving the cross rod can be achieved by enabling the cross rod to slide into or slide out of a clearance between the inserting block and the frame.