implements the function of supporting for example the contact 6 is a meshwork passing through the cavity 3 from the top via a mechanical arm the meshwork is fit onto the polycrystalline silicon rod 7 and has the function of supporting one end of the meshwork is hanged on the harvest apparatus multiple holes are disposed at the bottom of the wall 4 and allow the contact 6 to pass through and to clamp the bottom of the polycrystalline silicon rod 7 without being blocked by the polycrystalline silicon rod 7 or separating blades as the polycrystalline silicon rod 7 detached from the base plate 12 is separated from the base plate and is loose within the cavity 3 and is surrounded by the wall 4 the harvest apparatus is hoisted upwardly via the crane 8 and detached from the base plate 12 or detached from the base plate 12 by upwardly moving a clamping device surrounding the wall 4 via a mechanical arm multiple polycrystalline silicon rods 7 are received in the cavity 3 and efficiency of transferring multiple polycrystalline silicon rods 7 at a time is far higher than that of a traditional method that can only transfer one polycrystalline silicon rod 7 or a pair.