A wireless power transmission device for a vehicle, comprising: a wireless power transmission module including at least one wireless power transmission antenna (111,112,113) for transmitting wireless power, and a magnetic-field shielding sheet disposed on one surface of the at least one wireless power transmission antenna (111,112,113); a heat dissipation case configured to discharge heat generated from a heat source, wherein the wireless power transmission module is coupled to one side of the heat dissipation case and at least one circuit board (161,162) for driving the wireless power transmission module is embedded in the heat dissipation case; a heat dissipation plate disposed between the wireless power transmission module and the heat dissipation case and configured to dissipate heat generated from the at least one wireless power transmission antenna (111,112,113); an insulating layer disposed on one surface of the heat dissipation plate and configured to block transfer of heat between the heat dissipation case and the heat dissipation plate; and a cover detachably coupled to the heat dissipation case, wherein the wireless power transmission device further comprises a ground cable connected the heat dissipation case and connectable a body of a vehicle, wherein the heat dissipation case is formed of a metal material to absorb electromagnetic waves generated from the at least one circuit board (161,162), and wherein the heat dissipation case includes a fastening hole to which an end of the ground cable is fastened so that electromagnetic waves absorbed by the heat dissipation case can be transferred to the body of the vehicle through the ground cable. a wireless power transmission module including at least one wireless power transmission antenna (111,112,113) for transmitting wireless power, and a magnetic-field shielding sheet disposed on one surface of the at least one wireless power transmission antenna (111,112,113); a heat dissipation case configured to discharge heat generated from a heat source, wherein the wireless power transmission module is coupled to one side of the heat dissipation case and at least one circuit board (161,162) for driving the wireless power transmission module is embedded in the heat dissipation case; a heat dissipation plate disposed between the wireless power transmission module and the heat dissipation case and configured to dissipate heat generated from the at least one wireless power transmission antenna (111,112,113); an insulating layer disposed on one surface of the heat dissipation plate and configured to block transfer of heat between the heat dissipation case and the heat dissipation plate; and a cover detachably coupled to the heat dissipation case, wherein the wireless power transmission device further comprises a ground cable connected the heat dissipation case and connectable a body of a vehicle, wherein the heat dissipation case is formed of a metal material to absorb electromagnetic waves generated from the at least one circuit board (161,162), and wherein the heat dissipation case includes a fastening hole to which an end of the ground cable is fastened so that electromagnetic waves absorbed by the heat dissipation case can be transferred to the body of the vehicle through the ground cable.