The present invention relates to a sheet-shaped heat and light source. The sheet-shaped heat and light source includes a carbon nanotube film and at least two electrodes. The at least two electrodes are separately disposed on the carbon nanotube film and electrically connected thereto. The carbon nanotube film includes a plurality of carbon nanotubes arranging isotropically, along a fixed direction, or along different directions. Moreover, a method for making the sheet-shaped heat and light source and a method for heating an object adopting the same are also included.