An electrically angle-adjustable speaker includes a seat unit, a rotation unit and a speaker unit. A hole is provided at the central portion of the seat unit and a horizontal-rotation driving mechanism is provided by the hole. An arcuate toothed track is provided on the rotation unit, and a limiting track is provided below the track. A hole is provided at the central portion of the rotation unit. A vertical-rotation driving mechanism and a first limiting device are provided in the front portion of the hole. Two pivot bearings are provided in the rear portion of the hole. A toothed track and a positioning track are provided on the arcuate upper surface of the speaker unit. After the aforesaid components are put together, the electrically angle-adjustable speaker of the present invention is formed.