<p>To enhance the pull-out resistance of fully grouted rockbolts under tensile loads in coal mines, a non-homogeneous rockbolt is proposed. The principle is to establish a hollow section within the free end of the rockbolt, which is filled with materials of varying mechanical properties to optimize its bearing performance. The internal force distribution, failure modes, and elastic bearing capacity of non-homogeneous rockbolts under pull-out load are analyzed theoretically and validated through numerical simulation. Compared with ordinary homogeneous rockbolts, the shear displacement and shear stress of non-homogeneous rockbolts exhibit larger at the loaded end but smaller at the free end, and the axial force is smaller from the loaded end to the free end. When the grout-rock interface has the same shear strength, the non-homogeneous rockbolt reaches the shear strength later and breaks than the homogeneous rockbolt, resulting in improved overall bearing performance. As the diameter and length of the filling segment increase, the elastic modulus of the filling material decreases, and the shear displacement and shear stress at the free end of the non-homogeneous rockbolt decrease. Appropriate filling material parameters can be selected based on the site construction requirements to maximize the anchorage performance of B-rockbolts. The non-homogeneous rockbolt exhibits two failure modes: slip debonding failure at the grout-rock interface and breakage at the interface of the filling segment. The former is the primary failure mode. This study provides references to solve the problem of low pull-out resistance of rockbolts under pull-out loads in coal mine support systems.</p>