This multicenter trial evaluates the efficacy and safety of pomalidomide combined with orelabrutinib and zuberitamab (POZ) in patients with mantle cell lymphoma (MCL). After six cycles of POZ, patients who achieved minimal residual disease (MRD) negativity received maintenance therapy with orelabrutinib plus zuberitamab for up to 18 cycles. Those with MRD positivity were excluded and received alternative treatments. The primary endpoint is the MRD rate after six cycles of POZ. Secondary endpoints include progression-free survival (PFS), overall survival (OS), MRD rate, objective response rate (ORR), and safety.