The invention relates to a piece of aloft work clothes, which comprises a vest body and a pair of sleeves. Detachable suspenders are arranged on the vest body. The suspenders are formed by a waistband and two shoulder straps in a connecting way. Reflecting layers are arranged on the external surfaces of the shoulder straps corresponding to the back surface of the vest body. A plurality of main LED (light-emitting diode) flat lamps and auxiliary LED flat lamps are respectively arranged on the shoulder straps and at the middle parts of the sleeves. A battery pack is arranged in the inner layer of one shoulder strap or the waistband. The battery pack is connected with the main LED flat lamps and the auxiliary LED flat lamps through conducting wires. A main control switch and an auxiliary control switch are respectively arranged on the conducting wires. Since the reflecting layers are arranged on the shoulder straps, the cooperation and the personal safety of working personnel can be guaranteed; since the reflecting layers are arranged on the backs of the working personnel, the reflecting layers do not influence the working personnel; since the LED flat lamps are not required to be handheld, the two hands of the working personnel are free, not only is the work not interfered, but also the illuminating direction and the illuminating angle of the LED flat lamps can be freely adjusted along with the movement of arms and the operation of the working personnel is facilitated; and since the vest body can be cleaned at any time, the neatness of the vest body is guaranteed.