Hand-held package box and developed plate thereof

A developed plate to be folded into a hand-held package box, the developed plate comprising:

• a box body plate assembly to be folded into a box body;
• and
• a first plate, a second plate and a third plate, wherein the third plate is connected to the box body, the second plate connects the first plate and the third plate, the first plate has a first folded sheet, the second plate has a second folded sheet, and an shape of the first folded sheet and an shape of the second folded sheet are symmetrical with respect to a first folding line between the first plate and the second plate, wherein when the first plate is folded to a position between the second plate and the third plate, a folding line of the first folded sheet corresponds to a folding line of the second folded sheet, so that the first folded sheet and the second folded sheet, after being folded, form a handle;
• and
• a resting sheet connected to the first plate and folded into the box body and resting against a fourth plate connected to the third plate;
• wherein the first plate and the second plate are arranged in a first straight line direction, and the second plate and the third plate are arranged in a second straight line direction substantially perpendicular to the first straight line direction, such that the first plate, the second plate and the third plate together form a L-shaped plate.