The invention provides an electric running-aiding device, belonging to the technical field of wearable devices, and in particular relates to a running-aiding device. The electric running-aiding device mainly comprises power devices, a fixing board and a controller, wherein the two power devices with the same structure and function are distributed in a left-right symmetric manner; each power device comprises a propeller, a motor, a protective shield and a telescopic pipe; the upper end of the telescopic pipe is fixedly connected with the protective shield and the motor, and the lower end of the telescopic pipe is connected with the fixing board. The fixing board plays the role of fixing the device to the body of a user. A battery is mounted in the middle of the fixing board; the controller comprises a CPU, a miniature pressure sensor and a receiver. In use, the user wears the running-aiding device, the CPU controls the rotating speed of the motor, and then the lifting force is adjusted. The electric running-aiding device is suitable for being used when the traffic is crowded during holidays and festivals, or the device can be used by people loving hiking, excursion trip or mountain climbing, and is also suitable for firefighters to climb high-rise buildings to perform rescue. The electric running-aiding device is simple in structure, and part of the human weight can be counteracted, so that a person can walk or run briskly.