Abstract: An adjustable paper box suitable for containing an object is provided. The adjustable paper box includes a box body, an adjustable component, and a fixing component. The box body has a first direction, a second direction, and a third direction which are perpendicular to each other. The adjustable component is disposed on the box body and along at least one of the first direction, the second direction and the third direction. The fixing component is fixed inside the box body and crosses over the adjustable component for determining the length of the adjustable component. The adjustable paper box is capable of containing liquid crystal panels of different sizes.