PURPOSE: To provide a radio-wave absorptive panel with excellent wide-band attenuation in reflection, by putting a composite material with magnetic powder on an outer face of an exterior PC panel, where tube-shaped ferrite bodies are inserted between reinforcing bars.

CONSTITUTION: Reinforcing bars 1 are put in a meshed configuration with a length (a) of 100mm by a length (b) of 75mm and each cross point is welded. The reinforcing bar 1 elongated in a field direction is covered with a tube- shaped body 3 at each meshed square part. An absorptive tile 4 made of 10wt.% cement mixed with 90wt.% magnetic powder is put on the outside face. The magnetic powder is sintered powder of Mg-Mn-Cu-Zn-based ferrite. Since the radio-wave absorbing panel in a TV frequency band can be composed by using wave absorbing tiles made of cement mixed with the magnetic powder and by inserting the tube-shaped ferrite bodies between the reinforcing bars as a radio reflecting plate, the radio-wave absorption can be improved.