The invention discloses an ejection frame of an unmanned aerial vehicle (UAV) driven by a high-speed rotating electric motor, comprising a base and an ejection frame main body above the base, A lift rod is weld between that base and the ejection frame main body, a rotary electric machine is screwed at the rear end of the out surface of the upper end of the base, a motor arm is movably installed atthe front end of the rotary electric machine, and a first transmission wheel is pinned at an end of the motor arm away from the rotary electric machine. The ejection frame main body is positioned above the base, and a lift rod is welded between the base and the ejection frame main body. The invention is provided with a series of structures so that the device has good ejection effect in the use process and is not easily influenced by external factors, The utility model can avoid the difficult operation of the existing hand-rocking ejection rope retracting and releasing device, can better adaptto the ejection requirements of different environments, improves the application range of the ejection rack, can effectively absorb the kinetic energy of the fixing plate when the unmanned aerial vehicle leaves through the deformation action of the ejection rack, and can effectively protect the ejection rack itself.