Task Provided is a skin resecting tool capable of collecting tissue specimens of various thickness with a simple operation.SOLUTION: A shaft-like cutting means having an annular cutting edge at its tip, capable of cutting the skin with the cutting edge, and a tubular outer tube into which the cutting means is inserted and which can guide the cutting means in the axial direction An engagement mechanism is provided between the outer tube and the cutting means for restricting the relative movement of the outer tube and the cutting means in the axial direction. Depending on the distance from the distal end face of the outer tube to the cutting edge, the cutting depth of the skin Can be made adjustable.BACKGROUND OF THE INVENTION【課題】 簡単な操作で様々な厚みの組織標本を採取可能な皮膚切除具を提供する。【解決手段】 先端に環状の刃先を有し、該刃先により皮膚を切除可能な軸状の切除手段と、切除手段が内部に挿入されて、切除手段を軸方向に案内可能な筒状の外筒と、を備え、外筒と切除手段の間には、外筒と切除手段の軸方向の相対移動を規制する係合機構が設けられ、外筒の先端面と刃先までの距離によって、皮膚の切除深さが調整可能とされることを特徴とする皮膚切除具。【選択図】図1