The invention discloses an infrared humidification device and a control method thereof. The infrared humidification device comprises a control part and a humidification part. The humidification part comprises a water tank and an infrared lamp tube assembly. The infrared lamp tube assembly comprises main infrared lamp tubes and a spare infrared lamp tube. An overcurrent protection device is arranged in a circuit of each infrared lamp tube. The water tank is provided with a water tank temperature detection device. The control part is used for controlling the circuits of the main infrared lamp tubes and/or the circuit of the spare infrared lamp tube to be powered on or off according to the on-off conditions of the overcurrent protection devices and/or the temperature of the water tank. According to the infrared humidification device, by means of two means of the overcurrent protection devices and the water tank temperature detection device, the operating states of the infrared lamp tubes can be monitored in real time, dual protection on the infrared humidification device is achieved by means of combination of an overcurrent circuit break function and a temperature detection function, and the service life of the infrared humidification device is prolonged.