A medical puncture needle (10, 10A-D, 90) comprising: a main body having a cylindrical shape and having inside a through hole (12, 92); a blade surface (16, 28, 28a-b, 32, 96) that has an annular shape and that is cut into a tapered shape so that a thickness of the main body reduces toward a tip part of the main body; and a blade edge (18, 30, 34) that has an annular shape, the blade edge (18, 30, 34) being formed at a tip of the blade surface (16, 28, 28a-b, 32, 96) so as to extend along a plane orthogonal to a central axis of the main body, wherein the medical puncture needle (10, 10A-D, 90) is configured for administering a liquid medicine into a tissue of a living body, the blade edge (18, 30, 34) is sharp, and the diameter of the main body is 22 G to 34 G, characterized in that the medical puncture needle (10, 10A-D, 90) further comprises: a liquid medicine permeation portion (15, 15A-B) formed on an inner peripheral surface of the through hole (12, 92) near the blade edge (18, 30, 34), the liquid medicine permeation portion (15, 15A-B) guiding the liquid medicine to the blade edge (18, 30, 34) when the through hole (12, 92) is closed by the tissue, wherein the liquid medicine permeation portion (15, 15A-B) comprises a liquid medicine passage groove (20, 38) having a groove-shaped recess extending in an axial direction, or a protrusion generating a gap between the tissue and the inner peripheral surface, the liquid medicine passage groove (20, 38) has a width and a depth inhibiting entry of the tissue, a proximal end of the liquid medicine passage groove (20, 38) extends to a position where the tissue does not enter, and the liquid medicine passage groove (20, 38) is formed using plating. a main body having a cylindrical shape and having inside a through hole (12, 92); a blade surface (16, 28, 28a-b, 32, 96) that has an annular shape and that is cut into a tapered shape so that a thickness of the main body reduces toward a tip part of the main body; and a blade edge (18, 30, 34) that has an annular shape, the blade edge (18, 30, 34) being formed at a tip of the blade surface (16, 28, 28a-b, 32, 96) so as to extend along a plane orthogonal to a central axis of the main body, wherein the medical puncture needle (10, 10A-D, 90) is configured for administering a liquid medicine into a tissue of a living body, the blade edge (18, 30, 34) is sharp, and the diameter of the main body is 22 G to 34 G, characterized in that the medical puncture needle (10, 10A-D, 90) further comprises: a liquid medicine permeation portion (15, 15A-B) formed on an inner peripheral surface of the through hole (12, 92) near the blade edge (18, 30, 34), the liquid medicine permeation portion (15, 15A-B) guiding the liquid medicine to the blade edge (18, 30, 34) when the through hole (12, 92) is closed by the tissue, wherein the liquid medicine permeation portion (15, 15A-B) comprises a liquid medicine passage groove (20, 38) having a groove-shaped recess extending in an axial direction, or a protrusion generating a gap between the tissue and the inner peripheral surface, the liquid medicine passage groove (20, 38) has a width and a depth inhibiting entry of the tissue, a proximal end of the liquid medicine passage groove (20, 38) extends to a position where the tissue does not enter, and the liquid medicine passage groove (20, 38) is formed using plating. a liquid medicine permeation portion (15, 15A-B) formed on an inner peripheral surface of the through hole (12, 92) near the blade edge (18, 30, 34), the liquid medicine permeation portion (15, 15A-B) guiding the liquid medicine to the blade edge (18, 30, 34) when the through hole (12, 92) is closed by the tissue, wherein the liquid medicine permeation portion (15, 15A-B) comprises a liquid medicine passage groove (20, 38) having a groove-shaped recess extending in an axial direction, or a protrusion generating a gap between the tissue and the inner peripheral surface, the liquid medicine passage groove (20, 38) has a width and a depth inhibiting entry of the tissue, a proximal end of the liquid medicine passage groove (20, 38) extends to a position where the tissue does not enter, and the liquid medicine passage groove (20, 38) is formed using plating. the liquid medicine permeation portion (15, 15A-B) comprises a liquid medicine passage groove (20, 38) having a groove-shaped recess extending in an axial direction, or a protrusion generating a gap between the tissue and the inner peripheral surface, the liquid medicine passage groove (20, 38) has a width and a depth inhibiting entry of the tissue, a proximal end of the liquid medicine passage groove (20, 38) extends to a position where the tissue does not enter, and the liquid medicine passage groove (20, 38) is formed using plating.