A vehicle with a vehicle passenger compartment and a high-voltage cable connection structure, the high-voltage cable connection structure comprising: a high-voltage battery comprising a plurality of terminals; a plurality of first high-voltage cables connected to the plurality of terminals respectively; a first connector to which the plurality of first high-voltage cables are connected; and a connector receptacle provided in a high-voltage control unit disposed outside the vehicle passenger compartment, wherein inserting the first connector into and pulling out the first connector from the connector receptacle allows connection and disconnection between the plurality of first high-voltage cables and the high-voltage control unit, the first connector comprises a casing in which a plurality of connector-side mating terminals, each connected to one end of a corresponding one of the first high-voltage cables, and the ends of the first high-voltage cables are fixed inside, the casing is composed of a casing body and a casing lid, characterized by: the casing being further composed of an insulating bushing, on the vehicle front side of a bottom plate of the casing body, there is an annular protruding portion protruding from the bottom plate toward the vehicle front side and an inner side of the protruding portion is connected to a recess provided in the center of the bottom plate on the vehicle front side, the recess has a hole in the center, the insulating bushing is placed over the protruding portion from the vehicle front side, the insulating bushing protruding from the bottom plate of the casing body toward the front side of the vehicle and fitted into an inner surface of the connector receptacle, and the first connector comprises insulating tubes disposed between outer circumferences of the connector-side mating terminals and the casing, the insulating bushing has two through holes extending along the front-and-rear direction and the insulating tubes are fitted into the through holes, and tip portions of the insulating tubes protrude beyond a front end surface of the insulating bushing and an end surface of the casing. a high-voltage battery comprising a plurality of terminals; a plurality of first high-voltage cables connected to the plurality of terminals respectively; a first connector to which the plurality of first high-voltage cables are connected; and a connector receptacle provided in a high-voltage control unit disposed outside the vehicle passenger compartment, wherein inserting the first connector into and pulling out the first connector from the connector receptacle allows connection and disconnection between the plurality of first high-voltage cables and the high-voltage control unit, the first connector comprises a casing in which a plurality of connector-side mating terminals, each connected to one end of a corresponding one of the first high-voltage cables, and the ends of the first high-voltage cables are fixed inside, the casing is composed of a casing body and a casing lid, characterized by: the casing being further composed of an insulating bushing, on the vehicle front side of a bottom plate of the casing body, there is an annular protruding portion protruding from the bottom plate toward the vehicle front side and an inner side of the protruding portion is connected to a recess provided in the center of the bottom plate on the vehicle front side, the recess has a hole in the center, the insulating bushing is placed over the protruding portion from the vehicle front side, the insulating bushing protruding from the bottom plate of the casing body toward the front side of the vehicle and fitted into an inner surface of the connector receptacle, and the first connector comprises insulating tubes disposed between outer circumferences of the connector-side mating terminals and the casing, the insulating bushing has two through holes extending along the front-and-rear direction and the insulating tubes are fitted into the through holes, and the casing being further composed of an insulating bushing, on the vehicle front side of a bottom plate of the casing body, there is an annular protruding portion protruding from the bottom plate toward the vehicle front side and an inner side of the protruding portion is connected to a recess provided in the center of the bottom plate on the vehicle front side, the recess has a hole in the center, the insulating bushing is placed over the protruding portion from the vehicle front side, the insulating bushing protruding from the bottom plate of the casing body toward the front side of the vehicle and fitted into an inner surface of the connector receptacle, and the first connector comprises insulating tubes disposed between outer circumferences of the connector-side mating terminals and the casing, the insulating bushing has two through holes extending along the front-and-rear direction and the insulating tubes are fitted into the through holes, and tip portions of the insulating tubes protrude beyond a front end surface of the insulating bushing and an end surface of the casing.