To provide a biopsy needle that can ensure rigidity of a tip, even if a living tissue is easy to be cut at the rotation of the biopsy needle.SOLUTION: A biopsy needle 1 is provided for collecting a portion of the living tissue by needling a living tissue in a living body. The biopsy needle includes a tube-shaped part 1a formed in a tubular shape, and one piece of needle tip 1b connected to the tip of the tube-shaped part 1a. The tip of the needle tip 1b becomes a needle tip 1j formed by a line intersection between a planar first slope 1c and a planar second slope 1d. The slant angle of the first slope 1c to an axis center of the tube-shaped part 1a when viewing from the direction being parallel to the first slope 1c becomes gentle more than the slant angle of the second slope 1d to the axis center of the tube-shaped part 1a when viewing from the direction being parallel to the second slope 1d, and the inside end of the first slope 1c in the radial direction of the tube-shaped part 1a becomes a cutting edge 1t for cutting the living tissue.SELECTED DRAWING: Figure 2【課題】生検針の回転時に生体組織を切断しやすくなっていても、先端部の剛性を確保することが可能な生検針を提供する。【解決手段】生体内の生体組織に穿刺して生体組織の一部を採取するための生検針１は、管状に形成される管状部１ａと、管状部１ａの先端に繋がる１個の針先部１ｂとを備えている。針先部１ｂの先端は、平面状の第１傾斜面１ｃと平面状の第２傾斜面１ｄとの交線によって形成される針先１ｊとなっている。第１傾斜面１ｃに平行な方向から見たときの管状部１ａの軸心に対する第１傾斜面１ｃの傾斜角度は、第２傾斜面１ｄに平行な方向から見たときの管状部１ａの軸心に対する第２傾斜面１ｄの傾斜角度よりも緩くなっており、管状部１ａの径方向における第１傾斜面１ｃの内側端が、生体組織を切断する切断エッジ１ｔとなっている。【選択図】図２
