Foldable package inside caliper

The utility model relates to a foldable package inside caliper. The inside caliper comprises a tubular substrate, wherein a first folding edge, a second folding edge, a third folding edge and a fourth folding edge are arranged on the lateral edge of the tubular substrate in sequence, and the first folding edge, the second folding edge, the third folding edge and the fourth folding edge are folded and enclosed into a box body with one opening side. The foldable package inside caliper is characterized in that: the second folding edge and the fourth folding edge are respectively provide with a second inner folding edge and a fourth inner folding edge which are folded inside the first folding edge and the third folding edge; the second folding edge and the fourth folding edge are respectively provided with a second fold and a fourth fold which are folded towards the opening; and a clip hole is formed in the middle of at lease one of the second folding edge and the fourth folding edge. A product is put on the tubu