A power toothbrush is disclosed. A power toothbrush according to the present invention is characterized by comprising: a toothbrush main body which includes a power supply part, a switch part, and a toothbrush shaft extending to a side thereof a toothbrush head part connected to an end part of the toothbrush shaft a toothbrush bristle rotating part which is coupled to the toothbrush head part, includes tooth brush bristles disposed around the surface thereof to brush teeth, and rotates relatively against the toothbrush head part and a driving part which generates torque using power of the power supply part to transmit the torque to the toothbrush bristle rotating part, thereby rotating the toothbrush bristle rotating part relatively against the toothbrush head part, wherein the toothbrush bristle rotating part is coupled to the front end part, the rear end part, and the upper end part of the toothbrush head part to surround the inner surface, the outer surface, and the upper surface of the teeth, thereby simultaneously brushing the surfaces of the teeth. According to the present invention, a power toothbrush is provided by including a toothbrush bristle rotating part which is coupled to the front end part, the rear end part, and the upper end part of the toothbrush head part to surround the inner surface, the outer surface, and the upper surface of teeth, and then, rotates relatively against the toothbrush head part, thereby simultaneously brushing the entire surfaces of the teeth clean and reducing tooth brushing time.COPYRIGHT KIPO 2014전동칫솔이 개시된다. 본 발명의 전동칫솔은, 전원공급부 및 스위치부가 마련되며 일측으로 칫솔대가 연장 형성된 칫솔 본체 상기 칫솔대의 단부에 연결되도록 마련되는 칫솔 헤드부 상기 칫솔 헤드부에 결합되되, 표면 둘레를 따라 치아를 닦을 수 있는 칫솔모가 마련되며 상기 칫솔 헤드부에 대해 상대 회전운동을 하도록 마련되는 칫솔모 회전부 및 상기 칫솔모 회전부를 상기 칫솔 헤드부에 대해 상대 회전운동시킬 수 있도록 상기 전원공급부의 전원으로 회전동력을 발생시켜 상기 칫솔모 회전부에 전달하도록 마련되는 구동부를 포함하되, 상기 칫솔모 회전부는, 상기 치아의 내측, 외측 및 상측 표면을 동시에 닦을 수 있도록 상기 칫솔 헤드부의 전단부, 후단부 및 상단부에 상기 치아의 표면을 감싸도록 결합되는 것을 특징으로 한다. 본 발명에 의하면, 칫솔모 헤드부의 전단부, 후단부 및 상단부에 치