An experimental bench for an unmanned aerial vehicle (UAV) power system and avionics equipment, which relates to the technical field of UAV test, comprising a support component, a power system load-bearing component, an avionics equipment load-bearing component, a jacking component and a roller component. A plurality of power system load-bearing components are provided, and are fixedly arranged on the support components, respectively, and each power system load-bearing component is configured to carry the power system of a UAV; the avionics equipment load-bearing component is fixedly arranged on the support component, and the avionics equipment load-bearing component is configured to bear the avionics equipment of the UAV; the output end of the jacking component is fixedly connected to the bottom end of the support component.