Abstract: A power transmission apparatus (11) for four-wheel-drive hybrid vehicle according to the present invention is characterized in that it comprises a front-wheel/rear-wheel driving-force distributor means (21) for distributing rotary powers, which are output from an internal combustion engine (31) as well as a rotary electric appliance (32), between front wheels (91) and rear wheels (93), and then transmitting the rotary powers to them; wherein the front-wheel/rear-wheel driving-force distributor means (21) sets up the following when braking a vehicle: a rear-wheel disconnection mode for disconnecting between the front-wheel/rear-wheel driving-force distributor means (21) and the rear wheels (93); a front-wheel connection mode for connecting between the front-wheel/rear-wheel driving-force distributor means (21) and the front wheels (91); and a regeneration mode for regenerating the rotary powers from the front wheels (91) by the rotary electric appliance (32).

Abstract: A power switcher mechanism (3) according to the present invention is characterized in that it includes an input shaft (41), a first output shaft (42), a second output shaft (43), a first gear set (5) and a second gear set (6), and in that one of first-input-shaft gears for change-speed stages of the first gear set (5), that is, the first-input-shaft gear (412), is positioned between two second-input-shaft gears (413, 414) of the second gear set (6) in the axial direction of the input shaft (41).