The invention relates to a fixed wing type unmanned plane. A wing of the unmanned plane is of a three-section type wing-shaped structure. Forward pulling type propellers are installed on the front end of a plane body of the unmanned plane; the unmanned plane is provided with protecting devices, the protecting devices comprise a propeller protecting device, a wingtip protecting device and an empennage protecting device; and the unmanned plane is provided with a spraying system, the spraying system comprises a container, a pump, a spraying pipe and a spraying nozzle, the spraying nozzle is connected with the pump through the spraying pipe, and the pump is connected with the container through the spraying pipe. The fixed wing type unmanned plane has the advantages that various aspects of performance including spraying performance, collision resistance and the maximum lift coefficient is greatly improved.