A cylinder head cover includes: a cover section that covers a cylinder head, a pump casing section that is integrally formed with the cover section, that includes an upward-facing opening and that is provided with a circular hole portion that penetrates the cover section at a bottom portion; a rotation shaft that fits into the circular hole portion, with one axial direction end side disposed inside the pump casing section and with another end side coupled to a cam shaft; a vane that is disposed inside the pump casing section and that rotates integrally with the rotation shaft; and an oil supply path that extends from the pump casing section to the cover section, that is in communication with an oil flow path of the cylinder head, and that supplies oil pumped to the oil flow path from an oil pump to inside the pump casing section.