The paper investigates the non-Hermitian mobility edge (ME) in quasiperiodic systems, revealing that it exhibits a ring structure in the complex plane, termed "mobility ring (MR)." This structure is universal across various cases, including Hermitian limits, PT-symmetry protection, and non-PT-symmetry scenarios. The authors use Avila's global theory to analytically derive the MR and demonstrate its universality through numerical simulations. They also explore multiple MRs in non-Hermitian systems, showing that the maximum number of MRs is given by \( \kappa - 1 \), where \( \kappa \) is the quasiperiodic parameter. Additionally, they compare the self-duality method with Avila's theory, finding that the self-duality method has limitations in calculating critical points in non-Hermitian systems. The findings highlight the importance of MRs in understanding the coexistence of extended and localized states in non-Hermitian systems.The paper investigates the non-Hermitian mobility edge (ME) in quasiperiodic systems, revealing that it exhibits a ring structure in the complex plane, termed "mobility ring (MR)." This structure is universal across various cases, including Hermitian limits, PT-symmetry protection, and non-PT-symmetry scenarios. The authors use Avila's global theory to analytically derive the MR and demonstrate its universality through numerical simulations. They also explore multiple MRs in non-Hermitian systems, showing that the maximum number of MRs is given by \( \kappa - 1 \), where \( \kappa \) is the quasiperiodic parameter. Additionally, they compare the self-duality method with Avila's theory, finding that the self-duality method has limitations in calculating critical points in non-Hermitian systems. The findings highlight the importance of MRs in understanding the coexistence of extended and localized states in non-Hermitian systems.