Provided is a heating tool which is capable of providing less cool feeling at the time of attaching to the skin, warming the skin effectively and supplying oil effectively to the skin, as well as providing less cool feeling after peeling from the skin and providing a high warming effect even after use. This heating tool is a heating tool including an adhesive layer, wherein the adhesive layer has a specific heat of less than 3 J/g·K at 20° C., the adhesive layer includes a base and oil with a specific heat of less than 3 J/g·K at 20° C. and a boiling point of 100° C. or higher at 1 atmospheric pressure, and the oil is contained in an amount of 30 to 90 wt % in the adhesive layer.