A vehicle power transmission device having a hydraulic power transmission device and a power transmission mechanism in a power transmission path between an engine and drive wheels, the hydraulic power transmission device including an input-side rotating member disposed with a plurality of pump blades and an output-side rotating member disposed with a plurality of turbine blades receiving a fluid flow from the pump blades, the power transmission mechanism transmitting power input to an input shaft of the power transmission mechanism from the hydraulic power transmission device, to a subsequent stage, the input-side rotating member being provided with the pump blades internally disposed on the power transmission mechanism side and having a function of an outer shell cover, the outer shell cover housing the output-side rotating member disposed with the turbine blades opposite to the pump blades and fluid flowing from the pump blades to the turbine blades, the vehicle power transmission device having an engine intermittent clutch and a lockup clutch disposed closer to the engine relative to the turbine blades in the input-side rotating member, the engine intermittent clutch selectively coupling a crankshaft of the engine to the input-side rotating member, the lockup clutch selectively coupling the input-side rotating member to the output-side rotating member, one of the engine intermittent clutch and the lockup clutch being a single plate clutch, the vehicle power transmission device further comprising an electric motor operatively coupled to the input-side rotating member, the hydraulic power transmission device including a first damper inserted in a power transmission path between the crankshaft of the engine and the electric motor,and the lockup clutch being a friction engagement clutch including a disk-shaped piston member coupled in a power transmittable manner to the output-side rotating member and disposed in a manner allowing movement toward and away from a side wall surface of the input-side rotating member, and a friction plate fixedly disposed on the side wall surface of the input-side rotating member or a surface of the piston member opposite to the side wall surface, such that torque is transmitted between the input-side rotating member and the piston member by frictionally engaging the input-side rotating member and the piston member via the friction plate, the vehicle power transmission device being characterized in that: the electric motor is disposed on a second axial center parallel to an axial center of the hydraulic power transmission device; the hydraulic power transmission device includes, in addition to the first damper, a second damper inserted between the piston member of the lockup clutch and the input shaft of the power transmission mechanism to partially or entirely overlap with the first damper when viewed in a direction orthogonal to the axial center; and the disk-shaped piston member of the lockup clutch is coupled in the power transmittable manner to a disk portion of the output-side rotating member via the second damper. the electric motor is disposed on a second axial center parallel to an axial center of the hydraulic power transmission device; the hydraulic power transmission device includes, in addition to the first damper, a second damper inserted between the piston member of the lockup clutch and the input shaft of the power transmission mechanism to partially or entirely overlap with the first damper when viewed in a direction orthogonal to the axial center; and the disk-shaped piston member of the lockup clutch is coupled in the power transmittable manner to a disk portion of the output-side rotating member via the second damper.