PROBLEM TO BE SOLVED: To provide a compact and lightweight head belt lamp type shadowless lamp capable of suppressing temperature rise of a light emission part and a circuit board.SOLUTION: A head belt lamp type shadowless lamp 1 includes: a light emission part 3 and a mounting part 5 for mounting the light emission part 3 on the head of a doctor A. The light emission part 3 includes: a plurality of light-emitting diodes 31 a circuit board 32 mounted with the light-emitting diodes 31 heat sinks 33 fixed to a face opposite to a face mounted with the light-emitting diodes 31 of the circuit board 32 heat-radiating electric fans 34 disposed in the rear of the heat sinks 33 lenses 35 disposed in front of the light-emitting diodes 31 and a case 36 storing the light-emitting diodes 31, the circuit board 32, the heat sinks 33, the electric fans 34, and the lenses 35. Vent holes 361a, 33f for making air sucked from intake holes 32 of the case 36 pass are formed in the heat sinks 33 and the circuit board 32.
