The invention relates to a safety helmet for electricity workers. The safety helmet comprises a hat body (1) and a chin clasp (2), and the contact part with the wearer's chin of the chin clasp (2) isfitted with a pressure-sensing chip (5), wherein the hat body (1) is internally equipped with a control chip (3), a gyroscope (6) and a wireless communication chip (4), the control chip (3) is connected to the pressure-sensing chip (5), the gyroscope (6) and the wireless communication chip (4). Compared with the existing technology, after the electricity workers wear the safety helmet, the angle of the safety helmet and the acceleration detection are automatically started, when the control chip detects abnormal signal, the wireless communication chip sends out the alarm signal so as to ensurethe safety of the electricity workers.