The invention relates to a police riot control unmanned aerial vehicle application system, in particular to a laser riot control unmanned aerial vehicle and a working method thereof. A triaxial pan-tilt is arranged below an unmanned aerial vehicle body. A laser riot control integration module is arranged on the triaxial pan-tilt. The police riot control unmanned aerial vehicle specifically comprises an investigation camera, a laser riot control gun and a laser range finder which are installed in a coaxial or reference coaxial mode, and the function effect that what you see is what you prints is achieved. In order to achieve the laser hitting power density consistency, perpetual injuries to the eyes of a suspect are avoided, an automatic zooming mechanism is designed, the target distance is measured according to the laser range finder, the zoom lens is controlled so that the light power intensity at a target position can be under a perpetual damage threshold value all the time. The laser riot control unmanned aerial vehicle is applicable to the field of police service riot control anti-terrorism, remote army war domination is implemented to violent terrorists so that the violent terrorists can lose or partially lose the violence capability, the police can come over the terrorists for the first time, and effective remote military force support is provided for first-line policemen.