The utility model relates to a tool special for connecting, assembling and disassembling a damping ring. The tool comprises a supporting frame, a lower-end locking component, an upper-end locking component, a ratchet wheel mechanism and upper-end sleeves, the ratchet wheel mechanism is arranged at the upper end of the supporting frame, the upper-end locking component is arranged at the lower end of the ratchet wheel mechanism, the lower portion of the upper-end locking component is provided with one sleeve, the lower end of the supporting frame is provided with the lower-end locking component, and the upper portion of the lower-end locking component is also provided with one sleeve. The tool can achieve rapid assembly and disassembly of the damping ring, is safe and reliable, saves labor, and is an ideal tool special for assembling and disassembling the damping ring.