The invention discloses a packing structure comprising a casing and a buffering material, wherein the casing mainly comprises a bottom plate and a side wall, and the buffering material is arranged onthe bottom plate of the casing; the end part of the buffering material is provided with a groove and a jaw part; the jaw part is positioned on one side of the groove facing the side wall of the casingand extends in the direction away from the bottom plate; a first tongue piece is formed on the side wall of the casing and bends towards the interior of the casing; the free end of the first tongue piece extends into the groove from the opening of the groove, and the back side surface of the jaw part interferes with the first tongue piece and restricts the first tongue piece from going in and outof the groove; and when the buffering material moves in the direction away from the bottom plate due to an external force, the first tongue piece supports the internal surface of the bottom in the groove so as to restrict the displacement of the buffering material in the direction away from the bottom plate.