Abstract: The present invention provides an integrated intelligent head-mounted device comprising a frame mounted on a helmet in a detachable manner, on which a control circuit, a safety detection sensor, a loudspeaker, a microphone and a power supply are disposed or mounted. The integrated intelligent head-mounted device further comprises a health detection sensor disposed inside the helmet. The control circuit is provided with a wireless communication module and a positioning module and electrically connected to the health detection sensor, the video camera, the safety detection sensor, the loudspeaker, the microphone and the power supply. The device can be easily mounted and dismounted on a safety helmet and can monitor the physical condition and ambient condition of the wearer in real time.