The invention discloses a remote power transmission line foreign matter removing emitter. A laser emission unit comprises a carbon dioxide laser device, a light beam collimator and an outer shell; an aiming unit comprises a variable focus shooting module, a visible light indication module, a beam combiner and a wireless communication module; lasers emitted via the variable focus shooting module and the carbon dioxide laser device are the same in emission direction; images, collected via a variable focus camera, of a position aimed via a laser emitting unit are transmitted to a host computer via a wireless communication module; the aiming unit and the laser emission unit are connected via a fast interface, and therefore the aiming unit can be conveniently mounted and detached in a rapid manner. The remote power transmission line foreign matter removing emitter disclosed in the invention is high in foreign matter removal accuracy, convenient in operation, low in safety risk, small in manpower and material resource consumption, low in time consumption, rapid and convenient in assembling and detaching operation and low in overall weight; no high altitude operation is needed, hot-line work is allowed, and the emitter is easy to carry.