Screen fixing device and control method and equipment thereof

The embodiment of the invention provides a screen fixing device and a control method and equipment thereof. The screen fixing device comprises a base and a plurality of adsorption parts arranged on the base. A plurality of accommodating grooves are formed in the base, and the adsorption parts are in one-to-one correspondence with the accommodating grooves; the adsorption part comprises a sliding part and adsorption parts connected with the sliding part, the sliding part is slidably connected into the containing groove in the first direction, the adsorption parts are used for adsorbing the screen, the heights of the multiple adsorption parts are the same when the multiple adsorption parts do not adsorb the screen, and the adsorption parts are located outside the containing groove all the time; the fixing piece is arranged in the accommodating groove and is used for keeping the sliding part in a fixed state or a sliding state in the accommodating groove; wherein the first direction is the connection direction o