The invention provides a permanent magnet linear motor type electromagnetic catapult for an unmanned aerial vehicle. The permanent magnet linear motor type electromagnetic catapult comprises a catapulting rack, an unmanned aerial vehicle supporting and catapulting platform, a power supply system, a brake system and a control system. The permanent magnet linear motor type electromagnetic catapult is characterized in that the catapulting rack can be carried on transport equipment and is provided with linear slide rails, the unmanned aerial vehicle supporting and catapulting platform is supported on the linear slide rails of the catapulting rack through the two sides of the unmanned aerial vehicle supporting and catapulting platform, the catapulting rack is provided with the brake system, the unmanned aerial vehicle is carried on the unmanned aerial vehicle supporting and catapulting platform which can be driven by a catapulting motor to accelerate along the linear slide rails, the catapulting motor is a permanent magnetic linear motor, and when the unmanned aerial vehicle reaches the speed needed for taking-off, the unmanned aerial vehicle supporting and catapulting platform is braked under the damping effect of the brake system, and the unmanned aerial vehicle flies out inertially. The permanent magnet linear motor type electromagnetic catapult overcomes the problems that in the prior art, an unmanned aerial vehicle is poor in maneuverability, low in reliability, poor in concealment and low in efficiency during catapulting.