A parking lock device of a motor vehicle transmission comprising a transmission housing (11) with a housing wall (11a), a parking lock gearwheel (1), a parking lock pawl (2), a parking lock bolt (3) for mounting the parking lock pawl (2) and a blocking element (5). A carrier plate (7) is arranged alongside the parking lock pawl (2) and is fixed to the transmission housing (11), and the parking lock bolt (3) is held, on one side, by the carrier plate (7) and, on the other side, by the transmission housing (11).