The oxide layer formed on the surface of boron acts as a major factor that limits oxygen diffusion, thereby degrading ignition performance and increasing the ignition delay time. In this study, to overcome this limitation, a wet ball-milling process was applied to coat nickel onto the surface of boron, aiming to enhance its ignition performance. In addition, the effects of solvent type during the wet ball-milling process on coating behavior and ignition characteristics were systematically investigated. SEM and EDS analyses confirmed that nickel was effectively coated on the boron surface. Ignition performance was evaluated using shock tube experiments, and the ignition delay time was quantitatively determined and compared using the total area 10% method.