<p>Self-drilling bolt has been widely used in engineering industries such as tunnels, slopes, and mining. To improve the chip removal capacity of self-drilling bolts during the drilling process, this study introduces a novel designed cross-sectional self-drilling bolt. Theoretical formulas for axial force and interfacial shear stress of the new cross-section bolt are proposed and verified by numerical simulations. The effects of various parameters on the stress distribution of the bolt are investigated. Results show that the axial force of the novel cross-sectional bolt is lower than of the circular bolt under the pull-out loads. The interfacial shear stress near the loaded end increases at the chip removal groove and the circumferential shear stress distribution is outwardly convex or inwardly concave over the entire anchorage length. The axial force decreases with increasing depth <i>a</i> and width <i>b</i> of the chip removal groove. Compared to <i>b</i>, <i>a</i> has more influence on the shear stress at the chip removal groove interface. The increase in the number of chip removal grooves affects the distribution of circumferential shear stress. The bolt interfacial shear stresses increases with increasing pull-out load and elastic modulus of the rock, but the axial forces trend is various. The pull-out load has greater effect on the value of the circumferential shear stress and the distribution did not changes, but the elastic modulus of the rock affects both the value and the distribution of the circumferential shear stress.</p>