To provide a power transmission device for vehicle efficiently supplying lubricating oil to a planetary gear train without increase in the number of part items and in the processing man-hours of components, even if a torque limiter device is provided between an electric motor and the planetary gear train.

Each of a cover member 66 and a plate member 68 of a torque limiter device 26 has a positioning hole 76 extending in a straight direction parallel to an axis C1 and used to concentrically position the cover member 66 and the plate member 68. A friction portion between the cover member 66 and the plate member 68 is lubricated with lubricating oil supplied to between the both from the inner peripheral side of the positioning hole 76, and the planetary gear train 24 is lubricated with lubricating oil flowing out to the planetary gear train 24 side through the positioning hole 76.