<p>This study focused on steeple-triggered hat-shaped composite structures (HSCS), conducting crashworthiness design and parametric analysis based on stacking sequence design. A finite element model was developed based on the nonlinear progressive damage theory, and the traction–separation model was adopted to characterize inter-laminar damage behavior. Three lamination schemes were proposed, namely single, antisymmetric, and hybrid angle stacking (Sas, Aas, and Has), aiming to explore the influence law of material stacking sequence on structural crashworthiness. Meanwhile, the mechanism of the effect of loading angle on structural crushing modes was systematically investigated. This study reveals the intrinsic correlations between stacking sequence, loading angle, and structural crashworthiness. The results show that the stacking angle has a significant impact on structural crashworthiness; within a specific range of lamination angles, structural crashworthiness tends to improve with the increase of angle. Notably, the structure with the stacking sequence of [30°, -30°]_2s exhibits the optimal specific energy absorption (SEA) and peak load.</p>