Multi-device cooperative control method, display device and system

The invention discloses a multi-device cooperative control method, a display device and a system, which are used for avoiding the problem of mutual influence when a plurality of mobile devices independently perform reverse control on a large-size intelligent display device. The multi-device cooperative control method is applied to a display device, the display device is connected to a plurality of terminals, and the method comprises: the display device acquiring a first touch event of the plurality of terminals, the first touch event comprising an object identifier of a first touch object and touch data (400); the display device converts the first touch events of the plurality of terminals into own second touch events according to the session identifier bound to each terminal (401); wherein the session identifier is generated when the terminal establishes a connection with the display device; the second touch event comprises an object identifier and touch data of a second touch object, and the second touch object is determined based on the first touch object; and the display device performs a corresponding operation according to the second touch event (402).