Provided is a vacuum processing apparatus that improves an operation rate or efficiency of processing. The vacuum processing apparatus includes: a cylindrical pedestal which is disposed below a base plate that constitutes a specimen stage and is made of a metal, whose internal space is under an atmospheric pressure, and which is connected to the base plate in a state in which the base plate, and a base member and an insulating member fastened to the base plate are placed; a plate-shaped beam part which is disposed in the space of the pedestal with a gap from a lower surface of the base plate, and extends outward from the center of the space in a T or Y shape; a plurality of pins that pass through the beam part, the base plate, the insulating member, and the base member, support the specimen on tips thereof on an upper side of the specimen stage, and vertically move the specimen; a pin drive unit that is mounted on a lower surface of the center of the beam part; and a seal that is disposed around a through-hole through which each of the plurality of pins passes, and airtightly seals the inside and the outside.