A method and a device for opening a transport bag for loading and/or unloading, wherein the transport bag is conveyed along a conveying path by a conveyor system, in a suspended manner, to a device for opening the transport bag. The transport bag has a front and rear wall and a movable push element, which effects a relative movement of the front and rear wall with respect to one another between a closed bag state and an open bag state. An actively moved push device exerts a pushing force on a first end of the push element of the transport bag and the push element is converted from an idle conformation into a conformation subjected to a pushing force. The front and rear wall are thus moved relative to one another in the direction of an open bag state and the transport bag is opened for loading and/or unloading.