The utility model discloses an airborne folding rod -type straight line adds electric system, its characterized in that is equipped with the folding rod and moves end, folding mobile pole, exchanges jing biandianyuan and stiff end block terminal, and the folding rod moves the end to be formed by moving automobile body and universal gyro wheel, the folding mobile pole is formed by connecting through hollow folding joint unit hollow tube head and the tail, so that unit hollow tube and hollow folding joint form the intermediate frequency output cable, control cable, power frequency distribution cable penetrates the passageway, folding mobile pole one end removes the end with the folding rod and is connected, the other end is connected with interchange jing biandianyuan, folding mobile pole lower extreme is equipped with the universal wheel, the intermediate frequency output cable, control cable, power frequency distribution cable wears respectively in the folding mobile pole, only need remove the folding mobile pole when receiving and releasing the cable, labour saving and time saving not only, but also the wearing and tearing cable has been avoided, effectively reduce direct current output cable's length, line voltage drop has significantly reduced, aircraft power consumption demand has been ensured.