An operation display system comprising: a plurality of operation display devices (100, 200A, 200B, 200C) each having a touch panel; and a processor (180, 240) configured to: establish a cooperating state between a first operation display device and a second operation display device of the plurality of operation display devices, acquire load criteria serving as criteria of pressing forces sufficient for respective touch panels of the first and second operation display devices to accept a respective input operation for the first and the second operation display devices, and when the load criterion of the first operation display device differs from the load criterion of the second operation display device (S103, S104), acquire types of operations to be performed on the respective touch panels of the first and second operation display devices with respect to objects displayed on respective screens of the first and the second operation display devices, and control display on the respective screens of the first and the second operation display devices by exchanging content displayed on the screen between the first and the second operation display devices, to preferentially display a movable object on the operation display device having the lower load criterion; said movable object being a displayed object compatible with a moving operation that is performed by touching a portion of the object and moving the touched portion. a plurality of operation display devices (100, 200A, 200B, 200C) each having a touch panel; and a processor (180, 240) configured to: establish a cooperating state between a first operation display device and a second operation display device of the plurality of operation display devices, acquire load criteria serving as criteria of pressing forces sufficient for respective touch panels of the first and second operation display devices to accept a respective input operation for the first and the second operation display devices, and when the load criterion of the first operation display device differs from the load criterion of the second operation display device (S103, S104), acquire types of operations to be performed on the respective touch panels of the first and second operation display devices with respect to objects displayed on respective screens of the first and the second operation display devices, and control display on the respective screens of the first and the second operation display devices by exchanging content displayed on the screen between the first and the second operation display devices, to preferentially display a movable object on the operation display device having the lower load criterion; said movable object being a displayed object compatible with a moving operation that is performed by touching a portion of the object and moving the touched portion. establish a cooperating state between a first operation display device and a second operation display device of the plurality of operation display devices, acquire load criteria serving as criteria of pressing forces sufficient for respective touch panels of the first and second operation display devices to accept a respective input operation for the first and the second operation display devices, and when the load criterion of the first operation display device differs from the load criterion of the second operation display device (S103, S104), acquire types of operations to be performed on the respective touch panels of the first and second operation display devices with respect to objects displayed on respective screens of the first and the second operation display devices, and control display on the respective screens of the first and the second operation display devices by exchanging content displayed on the screen between the first and the second operation display devices, to preferentially display a movable object on the operation display device having the lower load criterion; said movable object being a displayed object compatible with a moving operation that is performed by touching a portion of the object and moving the touched portion.