This study presents a novel approach to enhance low-frequency microwave absorption using MXene-based materials. By modifying polarization properties and manipulating resonance response in three-dimensional (3D) MXene/cellulose nanofiber (CNF) cavities, the main absorption region is shifted from the X-band to the S-band, achieving a remarkable reflection loss of -47.9 dB in the low-frequency range. The key mechanism involves the coupling of controlled multilevel polarization with induced electric field interactions, leading to enhanced low-frequency absorption without the need for magnetic materials. The study demonstrates that orientation-induced polarization and derived magnetic resonance coupling are critical factors in achieving non-magnetic additive low-frequency absorption. The MXene/CNF composites (MC) showed a reflection loss of -52.6 dB in the X-band, and by optimizing the 3D cavity structure, the absorption band was extended to the S-band, achieving a reflection loss of -47.9 dB. The results indicate that the anisotropic electromagnetic response of the MC cavities significantly influences the absorption properties, with different orientations leading to distinct absorption bands. The study also highlights the potential of MXene-based materials for low-frequency microwave absorption, offering a promising strategy for lightweight and eco-friendly electromagnetic wave absorption materials. The findings suggest that the orientation of the 3D cavity structures plays a crucial role in controlling the electromagnetic response and microwave absorption properties, paving the way for broader applications of MXene in electromagnetic wave management.This study presents a novel approach to enhance low-frequency microwave absorption using MXene-based materials. By modifying polarization properties and manipulating resonance response in three-dimensional (3D) MXene/cellulose nanofiber (CNF) cavities, the main absorption region is shifted from the X-band to the S-band, achieving a remarkable reflection loss of -47.9 dB in the low-frequency range. The key mechanism involves the coupling of controlled multilevel polarization with induced electric field interactions, leading to enhanced low-frequency absorption without the need for magnetic materials. The study demonstrates that orientation-induced polarization and derived magnetic resonance coupling are critical factors in achieving non-magnetic additive low-frequency absorption. The MXene/CNF composites (MC) showed a reflection loss of -52.6 dB in the X-band, and by optimizing the 3D cavity structure, the absorption band was extended to the S-band, achieving a reflection loss of -47.9 dB. The results indicate that the anisotropic electromagnetic response of the MC cavities significantly influences the absorption properties, with different orientations leading to distinct absorption bands. The study also highlights the potential of MXene-based materials for low-frequency microwave absorption, offering a promising strategy for lightweight and eco-friendly electromagnetic wave absorption materials. The findings suggest that the orientation of the 3D cavity structures plays a crucial role in controlling the electromagnetic response and microwave absorption properties, paving the way for broader applications of MXene in electromagnetic wave management.