The invention relates to an ejector, more specifically to a multi-functional fixed-wing unmanned aerial vehicle ejector, which can not only drive the unmanned aerial vehicle support to move quickly through a spring return, but also accelerate the take-off of the unmanned aerial vehicle through a wind blade. The UAV bracket can also be reset by pulling it with a motor. The roller is located on theright side of the box, and the roller is provided with a steel wire, and one end of the steel wire is connected with the float; The spring shaft is located on the right side of the box, the spring isinstalled in the middle of the spring shaft, and the large gear on the outside of the spring shaft meshes with the pinion gear. The bracket is located at the lower part of the box body; The left sideof the box body is fixed with the motor, the upper part of the right side of the box body is fixed with the blades, the upper part of the box body is machined with a sliding groove, and the pulley isarranged in the sliding groove; The motor is located on the left side of the box; The blades are located on the upper left side of the box body; The UAV bracket is located at the upper part of the cabinet.