A vacuum sealing machine contains a sealing unit including a first connecting rod, two first electromagnets, and a first press member, the first connecting rod having two fixing pieces and two first apertures, and the first press member having a first adhering face; a pressing unit including a second connecting rod, two second electromagnets, a second press member, and two connection mounts, the second connecting rod having two pull bars, a plurality of second apertures, and two support tabs to support the first connecting rod, and the second press member having a second adhering face; an air exhausting unit including a transmission device and a drawing device; the body having a holder in which a receiving room is formed so as to receive the sealing unit, the pressing unit, and the air exhausting unit; the receiving room having a seat, the seat having the barrier strip and a heating strip.