The invention discloses an electric mosquito repellent capable of humidifying air, which comprises a shell, a support leg, a top cover, a slot, an air hole, a mosquito repellent sheet, a protection frame, a water injection hole, a water tank, an electric heating rod, a base, a wire box, a coil, a power supply seat, a wire slot hole, a plug and a sucker. The electric mosquito repellent has the advantages that: by arranging the water tank and arranging the electric heating rod in the water tank that can be used to heat water, the water in the water tank can be heated to vaporize the water. By arranging the air hole and the electric mosquito repellent above the water tank, the vaporized water can humidify the air, and can heating the mosquito repellent sheet to accelerate the agent dispersing, thus improving the efficiency of mosquito killing. By arranging the power supply seat in the wire box, the excess coil can be wound together to effectively save the internal space of the device, andby arranging the sucker at the bottom of the support leg, the device can effectively adsorb on the ground and prevent the device from turning over. The device has the advantages of convenient disassembly and complete functions.