A torque sensing device comprising: a stator including a stator tooth (130, 140); and a rotor including a magnet, wherein the stator tooth (130, 140) includes a first stator tooth and a second stator tooth disposed inside the first stator tooth, wherein the first stator tooth includes a first body having a ring shape and a plurality of first teeth spaced apart from each other and protruding from the first body in an axial direction, and the second stator tooth includes a plurality of second teeth, wherein the first tooth overlaps the second tooth in a radial direction from a center of the stator, wherein the plurality of first teeth overlaps with the plurality of second teeth in the radial direction and the stator includes a stator holder and a stator body which is coupled to the stator holder and on which the first stator tooth and the second stator tooth are disposed, wherein the stator body includes a protrusion, an inner part having a cylindrical shape, an outer part having a cylindrical shape and spaced outward from the inner part in the radial direction, and a partition plate connecting the inner part and the outer part, wherein the protrusion is in contact with a lower end of the first stator tooth or a lower end of the second stator tooth, characterized in that each of the plurality of first teeth has a trapezoidal shape when viewed in the radial direction from the center of the stator, in the plurality of first teeth, a width of a lower surface in a circumferential direction is greater than a width of an upper surface in the circumferential direction, the lower surface being adjacent to the first body and the upper surface being opposite to the lower surface; wherein the partition plate includes first holes and second holes for arranging the first stator tooth and the second stator tooth, and the number of the first holes is the same as the number of first teeth, a width of the first hole is greater than a width of the upper surface of the first teeth in the circumferential direction and smaller than the width of the lower surface of the first teeth in the circumferential direction. a stator including a stator tooth (130, 140); and a rotor including a magnet, wherein the stator tooth (130, 140) includes a first stator tooth and a second stator tooth disposed inside the first stator tooth, wherein the first stator tooth includes a first body having a ring shape and a plurality of first teeth spaced apart from each other and protruding from the first body in an axial direction, and the second stator tooth includes a plurality of second teeth, wherein the first tooth overlaps the second tooth in a radial direction from a center of the stator, wherein the plurality of first teeth overlaps with the plurality of second teeth in the radial direction and wherein the first tooth overlaps the second tooth in a radial direction from a center of the stator, wherein the plurality of first teeth overlaps with the plurality of second teeth in the radial direction the stator includes a stator holder and a stator body which is coupled to the stator holder and on which the first stator tooth and the second stator tooth are disposed, wherein the stator body includes a protrusion, an inner part having a cylindrical shape, an outer part having a cylindrical shape and spaced outward from the inner part in the radial direction, and a partition plate connecting the inner part and the outer part, wherein the protrusion is in contact with a lower end of the first stator tooth or a lower end of the second stator tooth, characterized in that each of the plurality of first teeth has a trapezoidal shape when viewed in the radial direction from the center of the stator, in the plurality of first teeth, a width of a lower surface in a circumferential direction is greater than a width of an upper surface in the circumferential direction, the lower surface being adjacent to the first body and the upper surface being opposite to the lower surface; wherein the partition plate includes first holes and second holes for arranging the first stator tooth and the second stator tooth, and the number of the first holes is the same as the number of first teeth, a width of the first hole is greater than a width of the upper surface of the first teeth in the circumferential direction and smaller than the width of the lower surface of the first teeth in the circumferential direction. wherein the protrusion is in contact with a lower end of the first stator tooth or a lower end of the second stator tooth, characterized in that each of the plurality of first teeth has a trapezoidal shape when viewed in the radial direction from the center of the stator, in the plurality of first teeth, a width of a lower surface in a circumferential direction is greater than a width of an upper surface in the circumferential direction, the lower surface being adjacent to the first body and the upper surface being opposite to the lower surface; wherein the partition plate includes first holes and second holes for arranging the first stator tooth and the second stator tooth, and the number of the first holes is the same as the number of first teeth, a width of the first hole is greater than a width of the upper surface of the first teeth in the circumferential direction and smaller than the width of the lower surface of the first teeth in the circumferential direction.