TRAY-TABLE STORAGE DEVICE

Provided is a tray-table storage device, including a sleeve structure and an extension storage structure. The sleeve structure includes a front surface, a common layer and a back surface. A sleeving cavity having an opening at one side thereof is defined between the back surface and the common layer. A first storage cavity having an opening at one side thereof is defined between the front surface and the common layer. The opening of the first storage cavity is orientated towards a direction opposite to the opening of the sleeving cavity. The extension storage structure is detachably connected to a bottom of the back surface, and includes at least two fabric layers. At least one second storage cavity each having an opening at one side thereof is defined by the at least two fabric layers.