The present invention discloses a heater with a humidifying device. The humidifying device includes a water container, a cotton rod, a fixing knob, an atomization plate, a hollow pipe, and a fog output box. Through the cotton rod, water is sent to the atomization plate to directly generate atomized particles. The design and structure of the present invention are simple. The heater is combined with an air purifying device, the humidifying device, and a heating device to provide multiple functions. An air outlet is to exhaust warm wind, humidified air and purified air, so the user can feel fresh but not dry warm wind.
