Abstract: A multi-function reusable sticker teaching tool, comprising a pad body, a first pressure-sensitive adhesive layer and a second pressure-sensitive adhesive layer. The pad body has a front surface and a back surface. The first pressure-sensitive adhesive layer is disposed on the back surface of the pad body for attachment to a wall. The second pressure-sensitive adhesive layer is disposed on the front surface of the pad body in a specific pattern for attachment to a sheet material. The first and second pressure-sensitive adhesive layers both have reusable sticking and water-proof properties, and the surface area of the second pressure-sensitive adhesive layer is smaller than that of the first pressure-sensitive adhesive layer. Therefore, the front and back surfaces can be adhered repeatedly and multiple fixing functions can be integrated.