A vacuum processing apparatus that includes an inner wall member disposed inside of an outer side wall member of a vacuum container, the inner wall member surrounding a side of a sample stand on which a sample to be processed is placed and facing to a plasma generated in a chamber inside of the inner wall member. The apparatus also includes an upper member arranged in the vacuum chamber above a flange portion of the inner wall member, contacting with an upper surface of the flange portion and transmitting a force pressing downwardly in a state where the inside of the vacuum container is reduced in pressure. The inner wall member is thermally connected with a temperature adjusting device which controls a temperature of the inner wall member through the upper surface of the flange portion and the upper member.