This multicenter, randomized, controlled trial aims to evaluate the efficacy and safety of Telitacicept in patients with refractory chronic inflammatory demyelinating polyneuropathy (CIDP). Eligible patients will be randomly assigned to receive either conventional therapy alone or Telitacicept plus conventional therapy for 24 weeks. Efficacy will be assessed using CIDP-related clinical and functional measures, including the Inflammatory Neuropathy Cause and Treatment (INCAT) disability score, Inflammatory Rasch-built Overall Disability Scale (I-RODS), Medical Research Council (MRC) sum score, grip strength, and the Timed Up and Go (TUG) test. Safety will be evaluated by monitoring adverse events, including their onset, duration, clinical manifestations, and management.