The invention discloses a multiple-factor accelerated aging test device for a composite material electric pole. The multiple-factor accelerated aging test device comprises an aging test room, wherein water nozzles and acid, alkali and salt atomizers are arranged on the roof surface of the aging test room; ozone generators, ultraviolet lamps, high-temperature and low-temperature humidity-heat devices, and a tensile machine are arranged on the side walls of the aging test room respectively; the action end of the tensile machine is connected with a traction rod which is provided with a force meter; corresponding to the composite material electric pole to be tested, weights, leads, longitudinal strain gratings, circumferential strain gratings, and a signal detection processor which is electrically connected with the force meter, the longitudinal strain gratings and the circumferential strain gratings respectively, are arranged inside the aging test room. By the cooperation of the water nozzles, the acid, alkali and salt atomizers, the ozone generators, the ultraviolet lamps, the high-temperature and low-temperature humidity-heat devices, the tensile machine, the weights and the leads, various natural environments can be simulated comprehensively, so that the performance of the composite material electric pole can be thoughtfully and correctly tested. The accelerated aging test device is applicable to testing of pole towers.