A feces sampling container comprising: a lid that comprises a feces sampling rod and a cap, a cap side circular protrusion being formed on an inner circumferential surface of the cap along a circumferential direction; a container body that has a tubular shape and opens on a base end side; and an inside plug that comprises a removal part and a plug side circular protrusion, the plug side circular protrusion being formed on an outer circumferential surface of the inside plug along a circumferential direction, the inside plug being fitted to inside of the container body through the base end side of the container body, a flange being formed along an edge of a base end side opening of the container body, and an overhang being formed on an outer circumferential surface of the inside plug at a given position along a circumferential direction so that the overhang is situated on the flange, characterized in that the container is further comprising: a removal mechanism being formed at a lower end of the cap and on an inner circumferential surface of the overhang of the inside plug, the removal mechanism comprises a sloping groove that is formed by partially swelling a side of the lower end of the cap to form a hollow, and slopes outward in a downward direction on an upper end side, and a sloping protrusion that is formed on the inner circumferential surface of the overhang, and slopes outward in a downward direction at least on an upper end side, and a cam mechanism that positions the removal mechanism being formed over the cap side circular protrusions formed on the inner circumferential surface of the cap and the plug side circular protrusion formed on the outer circumferential surface of the inside plug, the cam mechanism comprises a guide cam that is formed over the plug side circular protrusion formed on the outer circumferential surface of the inside plug, and slopes downward with respect to an axial direction from the apex side to form an inverted V-like shape, and an elongated protrusion that is formed over the cap side circular protrusion formed on the inner circumferential surface of the cap of the lid, and extends along an axial direction. a lid that comprises a feces sampling rod and a cap, a cap side circular protrusion being formed on an inner circumferential surface of the cap along a circumferential direction; a container body that has a tubular shape and opens on a base end side; and an inside plug that comprises a removal part and a plug side circular protrusion, the plug side circular protrusion being formed on an outer circumferential surface of the inside plug along a circumferential direction, the inside plug being fitted to inside of the container body through the base end side of the container body, a flange being formed along an edge of a base end side opening of the container body, and an overhang being formed on an outer circumferential surface of the inside plug at a given position along a circumferential direction so that the overhang is situated on the flange, characterized in that the container is further comprising: a removal mechanism being formed at a lower end of the cap and on an inner circumferential surface of the overhang of the inside plug, the removal mechanism comprises a sloping groove that is formed by partially swelling a side of the lower end of the cap to form a hollow, and slopes outward in a downward direction on an upper end side, and a sloping protrusion that is formed on the inner circumferential surface of the overhang, and slopes outward in a downward direction at least on an upper end side, and a cam mechanism that positions the removal mechanism being formed over the cap side circular protrusions formed on the inner circumferential surface of the cap and the plug side circular protrusion formed on the outer circumferential surface of the inside plug, the cam mechanism comprises a guide cam that is formed over the plug side circular protrusion formed on the outer circumferential surface of the inside plug, and slopes downward with respect to an axial direction from the apex side to form an inverted V-like shape, and an elongated protrusion that is formed over the cap side circular protrusion formed on the inner circumferential surface of the cap of the lid, and extends along an axial direction. a removal mechanism being formed at a lower end of the cap and on an inner circumferential surface of the overhang of the inside plug, the removal mechanism comprises a sloping groove that is formed by partially swelling a side of the lower end of the cap to form a hollow, and slopes outward in a downward direction on an upper end side, and a sloping protrusion that is formed on the inner circumferential surface of the overhang, and slopes outward in a downward direction at least on an upper end side, and a cam mechanism that positions the removal mechanism being formed over the cap side circular protrusions formed on the inner circumferential surface of the cap and the plug side circular protrusion formed on the outer circumferential surface of the inside plug, the cam mechanism comprises a guide cam that is formed over the plug side circular protrusion formed on the outer circumferential surface of the inside plug, and slopes downward with respect to an axial direction from the apex side to form an inverted V-like shape, and an elongated protrusion that is formed over the cap side circular protrusion formed on the inner circumferential surface of the cap of the lid, and extends along an axial direction.