Provided is a machine tool drill hand-guard structure. The drill hand-guard structure comprises a lock screw, guard plates are arranged on the lock screw, a blind hole and a guard bar, a drill is arranged on the blind hole of the guard bar, the drill is fixed to the blind hole through the lock screw, and an abrasive disc is arranged on the drill. The machine tool drill hand-guard structure has the advantages that the guard plates are arranged on the guard bar provided with the lock screw and the blind hole, the drill is inserted and fastened in the blind hole of the guard bar, and therefore when a user holds the guard bar to grind the drill on the abrasive disc by fingers, the guard plates can protect the fingers, holding the guard bar, of the user, then the fingers of the user are not prone to being damaged by a spiral cutting edge and the abrasive disc of the drill, and the problems of drills in the prior art can be solved. Thus, the machine tool drill hand-guard structure has the advantages of being good in use effect, simple in structure, and easy to manufacture, implement and popularize.