The present disclosure relates to the technical field of packaging and discloses a packaging box including a box body (1), a reel, and a cutting device (4). The box body is provided with an accommodation cavity (11) used for accommodating a vacuum bag roll, and is provided with a bag outlet (2); the reel is rotatably arranged in the box body, and is used for mounting the vacuum bag roll; the cutting device (4) includes a cutting part which is slidably connected to the box body; a bag opening of the vacuum bag roll stretches out from the box body to the cutting part after passing through the bag outlet (2). The packaging box provided by the present disclosure is conducive to storage, transport, and cutting the vacuum bag rolls, meeting the requirements of the user for using vacuum bags.