The invention discloses a coaxial opposite-rotation electric ceiling fan. The coaxial opposite-rotation electric ceiling fan comprises a first ceiling fan body, a second ceiling fan body, a coupler and a starting device. The first ceiling fan body comprises a first motor, a first machine shaft penetrating a stator of the first motor and fan blades connected with a rotor of the first motor. The second ceiling fan body comprises a second motor, a second machine shaft penetrating a stator of the second motor, and second fan blades connected with a rotor of the second motor. The first motor and the second motor are opposite in rotation direction. The coupler is used for connecting the first ceiling fan body with the second ceiling fan body which are arranged in advance into a whole. The starting device is arranged between the first ceiling fan body and the second ceiling fan body, and the first ceiling fan body and the second ceiling fan body are electrically connected with the starting device. According to the coaxial opposite-rotation electric ceiling fan, the air supply efficiency of the coaxial opposite-rotation electric ceiling fan can be improved, torque balance and loss reduction are achieved, a new platform is provided for electric ceiling fan appearance design, and the production speed of the coaxial opposite-rotation electric ceiling fan is increased on the premise that the existing ceiling fan motor manufacturing technology and dies are not overturned.