An air conditioner is provided. The air conditioner includes: a main body in which an air inhalant port and an air discharge port are formed to discharge air after inhaling air and performing air-conditioning； and a harmful insect extermination module disposed at the main body to exterminate harmful insects of indoor, wherein the harmful insect extermination module includes: a harmful insect extermination device for exterminating harmful insects； and a harmful insect extermination device moving device for moving the harmful insect extermination device in order to exterminate harmful insects while moving the harmful insect extermination device. Thereby, an area that can exterminate harmful insects at indoor can be more enlarged, and a harmful insect extermination ability can be improved with a minimum harmful insect extermination device.
