The utility model relates to a drilling tool and belongs to the technical field of a tool grinding tool structure. The drilling tool comprises a base, a first bolt, a sliding block and fixing blocks, the base is provided with a groove above the base, the first bolt penetrates through a plate block, the sliding block which can slide along the groove corresponds to the first bolt in the groove, the fixing blocks which are fixed with the base is arranged on the right side of the base and above the groove, and the sliding block corresponds to the fixing blocks left and right. A left clamping block and a right clamping block with lead holes are respectively fixed above the sliding block, the fixing blocks are arranged on the upper portion of the base, and one sides of the left clamping block and the right clamping block, and the top of a second bolt which penetrates through the fixing blocks is matched with the left clamping block and the right clamping block to fix a machined workpiece. A hexagonal head portion is clamped and a drill is guided so that the machined workpiece can be effectively fixed, the drill moves up and down in the lead holes, horizontal displacement of the drill is limited, and machining efficiency is largely improved. Meanwhile, the drill is not easy to break off, drill cost is saved, and efficiency of a product with large strength is especially obvious.