Abstract: A probe device includes a sample stage 125 that supports a sample, a probe unit 143 to which a probe 141 brought into contact with a predetermined sample surface of the sample is attached, a first camera 111A that images the sample and the probe, and a first camera optical axis adjustment stage 112A that adjusts an optical axis of the first camera, in which the optical axis of the first camera is parallel to the sample surface, and the first camera optical axis adjustment stage allows the optical axis of the first camera to be moved in a direction perpendicular to the sample surface.

Abstract: Tweezers 8, which can grip a sample piece 9, includes a gripping member 8a1 and a gripping member 8a2. The gripping member 8a1 includes a gripping region 8c1 and an abutment region 8b1, and the gripping member 8a2 includes a gripping region 8c2 and an abutment region 8b2. The gripping region 8c1 and the gripping region 8c2 include a gripping surface SF1 and a gripping surface SF2 for gripping the sample piece 9, respectively. The abutment region 8b1 protrudes from the gripping region 8c1 in a direction directed from the gripping surface SF1 to the gripping surface SF2, and the abutment region 8b2 protrudes from the gripping region 8c2 in a direction directed from the gripping surface SF2 to the gripping surface SF1.