The utility model belongs to the technical field of intelligent wearing, and particularly discloses an alarm used when a forklift worker does not wear a safety helmet, which comprises a safety helmet main body, a remote controller, and a circuit board, a
pressure sensor, a storage battery and an
alarm device which are arranged on the safety helmet main body, the
alarm device is arranged at the position, close to the wiring groove, of the outer side of the safety helmet body, the
pressure sensor is located at the position, close to the middle, of the inner side wall of the safety helmet body, the storage battery is located between the
alarm device and the
pressure sensor, and a flat cable is clamped in the middle of the wiring groove and connected with the alarm device. The alarm device comprises a sounding horn and an
OLED lamp, the sounding horn is arranged on the front face of the alarm device, the
OLED lamp is arranged on the upper surface of the alarm device, an
infrared emission lamp is arranged at one end of the remote controller, and in the using process, if the helmet is not worn and the pressure sensor does not detect the pressure, the alarm device is started through the circuit board to remind workers.