Provided is a thermal bonding sheet that prevents the material thereof from overflowing during adhering and from traveling up to the surface of the object to be adhered, and that obtains a strong sintered layer following sintering. A thermal bonding sheet provided with a layer in which, when the layer is analyzed by differential thermogravimetric analysis from 23°C to 500°C under the conditions of a temperature increase rate of 10°C/minute in air atmosphere, the value obtained by subtracting the weight loss (%) at 300°C from the weight loss (%) at 500°C is within the range of -1% to 0%.