A charging port structure comprising: a charging port (62, 62a, 62b) having an end connection (62d, 62j) to which a charging connector for supplying electric power from an outside power source is connected; a port cap (62e, 62k) for covering the end connection (62d, 62j) of said charging port (62, 62a, 62b) so as to be capable of opening and closing; and a release lever (62g, 62n) for opening said port cap (62e, 62k), the release lever (62g, 62n) being provided to a peripheral edge part of the end connection (62d, 62j) of said charging port (62, 62a, 62b), characterized by further comprising a port housing surrounding said charging port (62, 62a, 62b); a port lid for covering a front opening part (61 c) of said port housing so as to be capable of opening and closing; and guide means for receiving water that has flowed into said port housing from the periphery of said port lid and guiding the water away from where said release lever (62g, 62n) is provided, the guide means being provided above said charging port (62, 62a, 62b), wherein said guide means has a plate-shaped plate main body provided above said charging port (62, 62a, 62b), and a bead standing on a top surface of said plate main body, wherein said port housing has a housing rear surface through which said charging port (62, 62a, 62b) passes, and housing lateral surfaces (64b, 64c) extending from both sides of said housing rear surface and covering sides of said charging port (62, 62a, 62b), and wherein said bead stands on a peripheral edge part of said plate main body and has: a peripheral edge bead in which bead breaks are formed at positions facing corner parts formed by said housing rear surface and said housing lateral surfaces (64b, 64c); and an inside bead standing on an inside of said peripheral edge bead, and gradually approaching said housing rear surface progressively toward both end parts from a center part in the vehicle width direction while extending in the width direction of said port housing. a charging port (62, 62a, 62b) having an end connection (62d, 62j) to which a charging connector for supplying electric power from an outside power source is connected; a port cap (62e, 62k) for covering the end connection (62d, 62j) of said charging port (62, 62a, 62b) so as to be capable of opening and closing; and a release lever (62g, 62n) for opening said port cap (62e, 62k), the release lever (62g, 62n) being provided to a peripheral edge part of the end connection (62d, 62j) of said charging port (62, 62a, 62b), characterized by further comprising a port housing surrounding said charging port (62, 62a, 62b); a port lid for covering a front opening part (61 c) of said port housing so as to be capable of opening and closing; and guide means for receiving water that has flowed into said port housing from the periphery of said port lid and guiding the water away from where said release lever (62g, 62n) is provided, the guide means being provided above said charging port (62, 62a, 62b), wherein said guide means has a plate-shaped plate main body provided above said charging port (62, 62a, 62b), and a bead standing on a top surface of said plate main body, wherein said port housing has a housing rear surface through which said charging port (62, 62a, 62b) passes, and housing lateral surfaces (64b, 64c) extending from both sides of said housing rear surface and covering sides of said charging port (62, 62a, 62b), and wherein said bead stands on a peripheral edge part of said plate main body and has: a peripheral edge bead in which bead breaks are formed at positions facing corner parts formed by said housing rear surface and said housing lateral surfaces (64b, 64c); and an inside bead standing on an inside of said peripheral edge bead, and gradually approaching said housing rear surface progressively toward both end parts from a center part in the vehicle width direction while extending in the width direction of said port housing. a peripheral edge bead in which bead breaks are formed at positions facing corner parts formed by said housing rear surface and said housing lateral surfaces (64b, 64c); and an inside bead standing on an inside of said peripheral edge bead, and gradually approaching said housing rear surface progressively toward both end parts from a center part in the vehicle width direction while extending in the width direction of said port housing.