The invention relates to a servo bottle unscrambler which comprises a cabinet. The servo bottle unscrambler is characterized in that a support is arranged at the lower end of the interior of the cabinet, a platform is arranged at the upper end of the cabinet, and a lifting mechanism is arranged on the platform; a seat plate is arranged at the upper end of the lifting mechanism, a sponge clamping band is arranged on one side of the seat plate and connected with a clamping band motor through a belt, and an LED light source is arranged at the upper end of the lifting mechanism; and a canvas conveying belt is arranged in the middle of the cabinet. The servo bottle unscrambler is novel in structure, a pipe is clamped inside through a three-section type expansion plug structure with a guiding function, and after one-time clamping is completed, cone grinding operation and thread-type machining operation on a T-shaped thread can be achieved at the same time, so that machining errors generated by repeated clamping are reduced; and the number of producing procedures is reduced, the machining time is saved, product efficiency is improved, and machining precision of workpieces is improved.