The invention discloses a telescopic spinning spool. The telescopic spinning spool comprises a first spool body. The two ends of the first spool body are connected with a second inner spool body and a third inner spool body, an internal thread is arranged on the first spool body, external threads are arranged on the second inner spool body and the third inner spool body, yarn blocking plates are arranged at the outer end of the second inner spool body and the outer end of the third inner spool body, a second outer spool body is arranged on the outer side of the second inner spool body, and a third outer spool body is arranged on the outer side of the third inner spool body. Inwards recessed protective cushions are arranged at the joint of the second outer spool body and the corresponding yarn blocking plate and the joint of the third outer spool body and the corresponding yarn blocking plate, a first fixing device is arranged at the joint of the second outer spool body and the first spool body, and a second fixing device is arranged at the joint of the third outer spool body and the first spool body. The telescopic spinning spool has the beneficial effects that the lengths of the spool bodies can be adjusted according to working requirements, and high efficiency is achieved.