High-frequency switch charging equipment provided with a fan alarm device includes a high-frequency switch charging equipment body (1) and a fan (2) at the tail thereof, and is characterized in that the equipment also includes an infrared emitting device (3), an infrared receiving device (4) and a sound alarm device (5), wherein the infrared emitting device (3) and the infrared receiving device (4) are arranged at two sides of fan blades (21) of the fan (2). The high-frequency switch charging equipment is provided with the infrared emitting and receiving devices, according to the principle that a sound alarm signal is sent out when an object blocks infrared rays, a signal output part is provided with an intermediate relay, the sound loudspeaker is connected to a contact of the intermediate relay, when the fan blades of the fan are in normal operation, the infrared rays are blocked and the intermediate relay acts, a normally closed contact is switched off, the sound loudspeaker does not give an alarm, and when the fan blades of the fan stops rotating, the intermediate relay does not act, the normally closed contact is switched on, and the sound loudspeaker sends out a sound alarm signal.