The utility model relates to a safety helmet is used in electric power engineering construction, it includes outer protective shell, interior protective housing, hangs to detain takes, suspends in midair inner bag, transparent face guard and purse battery, owing to set up the camera on outer protective shell, but also be provided with the communication interface who connects outside communications facilities at the outer protective shell rear portion, make earphone and the microphone is connected with communication interface in suspending the inner bag in midair, consequently can very audio -visually let commander understand the actual conditions at scene through the camera, through the earphone made in the inner bag and microphone can also the very convenient row of letting explode personnel and on -the -spot commander exchanges. And simultaneously, the utility model discloses rational in infrastructure, wear comfortablely, and can carry out all -round protection to the head, electric power engineering construction operation personnel field usage is particularly suitable for.