Folding packaging box

The utility model discloses a folding type packaging box which comprises a packaging box body, a supporting component used for preventing the packaging box body from being folded and an adjusting component used for controlling different storage depths. The supporting component comprises a fixing base connected with the periphery of the top of the lower portion of the packaging box, a first supporting rod connected with the fixing base, an adjusting groove formed in the top of the first supporting rod, a second supporting rod arranged in the adjusting groove in a sliding mode and fixing blocks fixedly connected with the periphery of the upper portion of the packaging box. According to the packaging box body, the supporting component and the adjusting component, the problems that although an existing packaging box can be folded and can be used for supporting the packaging box during use, the packaging box can be lifted upwards during use, an insertion sleeve is easy to move upwards, then a supporting rod is eas