The invention discloses a novel cutter handle component which comprises a cutter handle shell, a stator fixed in the cutter handle shell and a central spindle component located in the cutter handle shell. The central spindle component comprises a central spindle and a rotor which is installed outside the central spindle and matched with the stator, a supporting bearing is installed in the cutter handle shell, and the central spindle is installed in the inner ring of the supporting bearing in an inserted mode; the lower end of the central spindle stretches out from the open end of the cutter handle shell and is connected with a clamping component used for clamping a cutter, an air outlet gap communicated with the outside is formed between the central spindle and the open end of the cutter handle shell, and the cutter handle shell is provided with an air inlet, a first air passage, a second passage and a spiral air passage. The novel cutter handle component utilizes the coordination of the stator and the central spindle component to drive the clamping component to rotate without depending on an outside main spindle, moreover, cooling air flow is used for taking away the heat generated by the central spindle component and the stator, and therefore the service life of the central spindle is prolonged; in addition, the rotating speed can be improved to improve the surface machining quality.