A special hangtag for plaster trowel, which is in flat shape, has a hanging hole on top. The limit section of the grip is placed in the middle of the hangtag, which can be lifted up forward, and the structure is designed to place the grip of the plaster trowel. On one side of the hole for supporting rod is a guiding slot coming from one side of the hangtag, which makes the supporting rod that is located between the grip and the low profile of the plaster trowel to be located in the hole for supporting rod from the guiding slot. Thus, the grip of the plaster trowel and the supporting rod are horizontally and vertically supported by the limit section of the grip and the hole for supporting rod, and forms a one-unit position with hangtag.