The present invention is the exhaust gas nozzle for guiding the gas discharged from the engine of the helicopter into the infrared suppression apparatus and the air suction pipe for introducing the outside air to cool the gas discharged from the exhaust gas nozzle and sucked through the air suction pipe An air induction pipe for guiding the outside air backward and a diffuser for mixing the gas and the outside air to be discharged in a specific direction, and a pairing for preventing the exhaust gas nozzle and the diffuser from being exposed to the outside. Helicopter infrared suppressor characterized in that, according to the invention there is an effect that can effectively suppress the infrared signal emitted from the helicopter while minimizing the size and weight of the infrared suppressor.
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