The invention discloses a titanium pin registration device and method used for artificial cochlea navigation surgery, and belongs to the field of implantation surgery systems. The titanium pin registration device used for the artificial cochlea navigation surgery comprises a head rest, titanium pins, a probe, gauge points, a binocular tracking sensor and a computer analysis module, wherein the titanium pins are used for being implanted into the backs of the lateral auricles of a patient; the probe is installed on one side of the head rest, and is used for being connected with the titanium pins; the gauge points comprise gauge points which are installed on the probe and the head rest respectively, and the binocular tracking sensor is used for collecting space coordinates of the gauge points; and the computer analysis module is in communication connection with the binocular tracking sensor, through connection between the probe and the titanium pins in the head, space coordinates and positions of the titanium pins with the head rest as a reference system are calculated, and the space coordinates and the positions of the titanium pins and acquired three-dimensional space coordinates and positions of the cochleae and the surrounding tissue of the patient are subjected to registration. According to the titanium pin registration device and method used for the artificial cochlea navigation surgery, by means of the gauge points on the probe and the head rest, by unifying CT images of the titanium pins and the cochleae of the patient into the reference coordinate system, a surgery tool can be precisely positioned, and navigation is conducted according to preoperative planning, so that operation of a doctor is facilitated.