The invention discloses a fan safety helmet with a spring buffer device. The fan safety helmet comprises a safety helmet body, an electric fan, a fan bayonet, water absorption sponge, a lithium battery and a fan host, wherein the water absorption sponge is located above a brim, an interlayer is arranged on the inner side of the safety helmet body, a buffer spring is mounted on the inner side of the interlayer, a motor is mounted on the inner side of the fan host, the lithium battery is mounted below the motor, and a fan base is mounted below a telescopic ring. The fan safety helmet with the spring buffer device can be provided with the small electric fan, so that summer heat can be relieved for a worker when the worker works in hot summer; the electric fan is provided with an adjusting rod, so that the position can be adjusted; and the safety interlayer is added to the fan safety helmet with the spring buffer device, the buffer spring is arranged in the interlayer, and a buffer springshell is made of rubber materials, so that buffer force is increased, force of gravity can be reduced when a heavy object falls down, the head of the worker is maximally protected, and the safety is improved.