The present invention relates to a curable heat radiation composition which includes two types of fillers with different compressive breaking strengths (except when the two types of fillers are the same substance) and a thermosetting resin, the compressive breaking strength ratio of the two types of fillers [compressive breaking strength of a filler (A) with a higher compressive breaking strength/compressive breaking strength of a filler (B) with a lower compressive breaking strength] being 5 to 1,500, the compressive breaking strength of the filler (A) being 100 to 1,500 MPa, and the compressive breaking strength of the filler (B) being 1.0 to 20 MPa, an adhesive sheet using the composition and a method for producing the same. An aluminum nitride is preferable as the filler (A) and hexagonal boron nitride agglomerated particles are preferable as the filler (B).