An unmanned aerial vehicle cluster system, a method, apparatus, and system of launching, and a readable medium. The unmanned aerial vehicle cluster includes a plurality of unmanned aerial vehicles located in a launch area. The method of launching the unmanned aerial vehicle cluster includes: acquiring (S210) launch positions for the plurality of unmanned aerial vehicles in the launch area; acquiring (S220) an assembly area which corresponds to the launch area and includes a plurality of target positions; determining (S230) a target position for each unmanned aerial vehicle of the plurality of unmanned aerial vehicles according to the launch positions for the plurality of unmanned aerial vehicles and the plurality of target positions; and launching (S240) the plurality of unmanned aerial vehicles according to the launch position for each unmanned aerial vehicle of the plurality of unmanned aerial vehicles and the target position for each unmanned aerial vehicle.