A needle tip section (34) of a biopsy needle includes a first beveled surface (36) constituted of a plane extended in a direction crossing a tube axis (X1) of a tubular section (31), a second beveled surface (37) adjacent to the first beveled surface (36) and forming an angle with the first beveled surface (36), constituted of a plane adjacent to an inner circumferential surface (33) of the tubular section (31), a third beveled surface (38) adjacent to the first beveled surface (36) and forming an angle with the first beveled surface (36) at an opposite side of the second beveled surface (37) with an opening portion (35) interposed therebetween and constituted of a plane adjacent to the inner circumferential surface (33) of the tubular section (31), a first boundary line (40) serving as a boundary between the first beveled surface (36) and the second beveled surface (37), and a second boundary line (43) serving as a boundary between the first beveled surface (36) and the third beveled surface (38), and the first boundary line (40) and the second boundary line (43) are non-parallel straight lines having an interval that gradually increases in a direction from the second end portion (31b) toward the first end portion (31a) in a tube axis (X1) direction of the tubular section (31).
