An electric unmanned aerial vehicle includes a position sensor configured to obtain coordinate information of a present position of the electric unmanned aerial vehicle in real-time, a memory storing coordinate information of a preset position of the electric unmanned aerial vehicle, and a controller in communication with the position sensor and the memory and being configured to calculate a safety electricity amount needed by the electric unmanned aerial vehicle to perform a safety protection command based on the coordinate information of the present position and the coordinate information of the preset position, compare the safety electricity amount with a present remaining electricity amount of a battery of the electric unmanned aerial vehicle, and perform a safety protection command if the present remaining electricity amount is not greater than the safety electricity amount.