A capacitance electronic pen arranged such that a front end of a core body made of a conductive material protrudes from one opening side of a hollow portion of a cylindrical housing, the electronic pen including a plurality of components lined up in an axial direction in the hollow portion, wherein the electronic pen includes a cylindrical coupling member made of an insulating material and configured to house at least part of the plurality of components, the cylindrical housing includes a first housing portion and a second housing portion separated in the axial direction, the first housing portion is made of a conductive material and includes an opening arranged such that the front end of the core body protrudes outside in a state in which the first housing portion is electrically separated from the core body, and a protrusion portion is formed on an outer peripheral surface of the cylindrical coupling member in a direction orthogonal to the axial direction from the peripheral side surface, an end surface of the protrusion portion is part of the cylindrical housing, wherein the first housing portion and the second housing portion are separated by the protrusion portion, wherein the capacitance electronic pen is characterized in that one side of the cylindrical coupling member in the axial direction with respect to the protrusion portion is a first fitting cylindrical portion, which is press-fitted to a cylindrical shape portion of the first housing portion, another side of the cylindrical coupling member in the axial direction with respect to the protrusion portion is a second fitting cylindrical portion, which is press-fitted to the second housing portion, wherein a side surface of the first housing portion, a side surface of the second housing portion, and the end surface of the protrusion portion are provided without a difference in level in the axial direction, wherein the protrusion portion is a ring-shaped flange portion that electrically insulates the first housing portion and the second housing portion. the electronic pen includes a cylindrical coupling member made of an insulating material and configured to house at least part of the plurality of components, the cylindrical housing includes a first housing portion and a second housing portion separated in the axial direction, the first housing portion is made of a conductive material and includes an opening arranged such that the front end of the core body protrudes outside in a state in which the first housing portion is electrically separated from the core body, and a protrusion portion is formed on an outer peripheral surface of the cylindrical coupling member in a direction orthogonal to the axial direction from the peripheral side surface, an end surface of the protrusion portion is part of the cylindrical housing, wherein the first housing portion and the second housing portion are separated by the protrusion portion, wherein the capacitance electronic pen is characterized in that one side of the cylindrical coupling member in the axial direction with respect to the protrusion portion is a first fitting cylindrical portion, which is press-fitted to a cylindrical shape portion of the first housing portion, another side of the cylindrical coupling member in the axial direction with respect to the protrusion portion is a second fitting cylindrical portion, which is press-fitted to the second housing portion, wherein a side surface of the first housing portion, a side surface of the second housing portion, and the end surface of the protrusion portion are provided without a difference in level in the axial direction, wherein the protrusion portion is a ring-shaped flange portion that electrically insulates the first housing portion and the second housing portion.