Solid rocket engine jet pipe butt joint hoisting tool

The utility model relates to a solid rocket engine jet pipe butt joint hoisting tool which comprises a balance shaft, and a small end supporting assembly, a large end supporting assembly, a hoisting ring and a balancing weight are sequentially arranged in the axial direction of the balance shaft. The small-end supporting assembly is detachably connected with the balance shaft, and the outer wall of the small-end supporting assembly abuts against the inner wall of the small end of the spray pipe. The large-end supporting assembly is detachably connected with the balance shaft, and the periphery of the large end of the spray pipe is clamped by the large-end supporting assembly; the small-end supporting assembly and the large-end supporting assembly apply counter-acting force to the spray pipe to fix the spray pipe; the hoisting ring is positioned in the balance shaft; the small-end supporting assembly and the large-end supporting assembly are located on the same side of the lifting ring, and the balancing weigh