Warning device for power construction

The utility model relates to the field of power construction equipment, in particular to a warning device for power construction, which comprises a mounting plate, a warning plate and a control panel are mounted on the front side of the mounting plate, a locking mechanism is arranged on the rear side of the mounting plate, and the locking mechanism is electrically connected with the control panel; the box door of the distribution box is locked through the locking mechanism, so that non-construction personnel cannot operate a construction circuit in the distribution box and an external power supply, the probability that the non-construction personnel use the distribution box in the operation process of the device is effectively reduced, the non-construction personnel know that the distribution box is in a use prohibited state in cooperation with the warning board, and the safety of the device is improved. And the probability that constructors are injured by accidental electric shock in the operation process is