The invention discloses a pallet put-away machine which comprises a stand; the stand is connected with a travelling frame in a sliding way, and the travelling frame is driven by a travelling power device; the travelling frame is connected with a lifting frame which slides along the vertical direction; the lifting frame is driven by a lifting driving device arranged on the travelling frame; a clamp frame is rotatablely arranged under the lifting frame; the lifting frame is provided with a rotation driving device; the clamp frame is connected with the rotation driving device by power; the clamp frame is articulated with two clamp heads which are arranged in an opposite way; the clamp frame is also provided with a clamp driving device; and the two clamp heads are connected with the clamp driving device by power. The pallet put-away machine is simple in structure and is capable of automatically putting away pallets rapidly, thus being in accordance with the production requirements and not putting away the pallets by manual work; therefore, the labor efficiency of workers is high, and the labor intensity is greatly reduced.