Inner package and packaging box including the same

A packaging box, configured to package an object, the packaging box comprising:

• an outer package, having a first accommodating space and a top cover portion which is openable and located on a top side thereof;
• and
• an inner package, comprising:
• a top portion, a rear portion, and a bottom portion, a plurality of retaining indentations, at least one positioning protrusion and a tongue portion, wherein the top portion and the bottom portion are respectively foldably connected to two opposite sides of the rear portion so that the inner package has a folded position and an unfolded position;
• wherein, the inner package in the unfolded position allows the object to be positioned on the rear portion;
• when the inner package is in the folded position, the top portion and the bottom portion are folded with respect to the rear portion and form a second accommodating space with the rear portion for accommodating the object and respectively pressing against two opposite sides of the object;
• and when the inner package is in the folded position, the inner package and the object are allowed to be accommodated into the first accommodating space of the outer package together;
• wherein the top portion has a front edge located at a side of the top portion away from the bottom portion and the rear portion;
• wherein the tongue portion is foldable connected to the front edge of the top portion, and the inner package is made of a single piece, such that pulling upwards the tongue portion is to force the top portion to pivot relatively to the rear portion so as to sequentially pull the top portion, the rear portion, and the bottom portion, that are of one piece, out of the outer package at one time and to cause the inner package to transform from the folded position to the unfolded position.