To provide a packaging box of playing cards that facilitates a dealer to set the playing cards to a card chute etc., at a time, concerning a shuffle playing card employed in a variety of playing games.

A packaging box 2 of a shuffle playing card 1 has a cube shape including six surfaces of a front surface 3, a rear surface 4, a left side surface 5, a right side surface 6, a top surface 7 and a lower surface 8 so as to surround the whole circumference of the shuffle playing card 1 in an assembled state. The packaging box 2 includes a zipper 11 including a zipper-shaped cut line 10 in parallel with the cube-shaped longitudinal direction (arrow L) in two places at predetermined intervals, and includes a center strip 12 in a central portion comparted by the two places of the zipper 11. Both sides of the shuffle playing card 1 are configured to be exposed by removing the two zippers 11 along the cut line 10 comprising a zipper line and a straight slit 13, so that the right and left side surfaces 5 and 6 of the packaging box 2 come off, respectively.