<p>This paper presents a novel biomimetic sinusoidal mesh honeycomb (BSMH) structure, designed to enhance the energy absorption capacity of conventional honeycomb structures. The BSMH design is biologically inspired, combining the layered deformation mechanism of a spider web with the impact-resistant and a wave-like cell wall structure found in a woodpecker's beak, which is modeled using sinusoidal curves. The structure incorporates sinusoidal cross-sections and a layered mesh to improve resistance to progressive instability and enhance energy dissipation under axial loading. Finite element simulations using LS-DYNA were conducted to compare the energy absorption performance of the BSMH, traditional honeycomb structure (THS), and mesh honeycomb structure (MHS). The BSMH exhibits superior energy absorption and dissipation performance. Then a parametric study was carried out to investigate the effects of sinusoidal wave number and amplitude of BSMH structure on energy absorption performance. Results demonstrate that larger amplitude and wave number values enhance load uniformity and reduce the risk of structural instability. Results indicate that the BSMH configuration with a sinusoidal amplitude of 0.9&#xa0;mm and a wave number of 2 demonstrates relatively optimal performance. Under these conditions, energy absorption (EA) and specific energy absorption (SEA) are enhanced by 247.6% and 48.2%, respectively. This enhancement is primarily attributed to the activation of multi-stage deformation modes and the suppression of localized instability through the sinusoidal cell wall geometry.</p>