A holding structure of an intervening member is provided for preventing the dropping-out of a wobbling-prevention member at an assembly time, and to extend an applicable range of rigidity of the intervening member to a low-side range. The holding structure of the intervening member includes a baffle plate intervened between a torque converter housing wall and an intervening member, and a wobbling-prevention member interposed between the baffle plate and the torque converter housing wall in a compressed state. A bottom portion of a concave portion is clamped between a head portion and a bulging portion of the wobbling-prevention member. Also, an inside of the head portion is hollow, so when the head portion is crushed and deformed, the air inside the head portion is discharged to the outside through an annular gap to reduce a compressive load relative to the baffle plate.