Three-dimensional packing box with primary support and secondary support

The utility model discloses a three-dimensional packing box with a primary and secondary support which supplies a container being simple and compact in structure for a plurality of articles to be placed in a box body in a separating mode. The three-dimensional packing box with the primary and secondary support comprises the box body, wherein at least one primary tray is arranged inside the box body, a secondary tray is arranged on a primary tray, and the size of the secondary tray is matched with the size of the primary tray. The middle position of the primary tray sinks downwards to form first article placing space. The middle position of the secondary tray sinks downwards to form second article placing space. The second article placing space is placed on the upper half part inside the first article placing space. The three-dimensional packing box with the primary and secondary support is simple and compact in structure, convenient to use, and simple to manufacture.