The invention discloses a screen pressing tool. The invention aims to design the screen pressing tool with a reasonable structure and a good use effect. The invention has the technical scheme that the screen pressing tool comprises a base and a net rack fixing support; a stepping motor is arranged on the base and drives the net rack fixing support through a gear transmission mechanism; a tip nozzle pressing piece is arranged on one side of the net rack fixing support; and a jack is assembled on the lower part of one side of a tip nozzle of the tip nozzle pressing piece.