Abstract: Disclosed is a device for holding a plastic trash bag in an open, upright position including a tubular liner member that is placed inside the trash bag to open the bag and provide support for holding the bag in an upright position. This liner member preferably is of a hollow, truncated, conical configuration with the bottom end being adjacent the closed end of the trash bag and being slightly greater in diameter than the opposed top end of the liner. A removable cover is placed over the bottom end of the liner member after the liner member has been inserted into the trash bag. This cover includees a pair of opposed, hingedly mounted handles that move into a locking position to hold the assembly of the liner and cover together with the bag sandwiched therebetween. The device may be equipped with a lid that covers the open end.