To provide a sensor manufacturing method with which the risk of sensor electrodes coming into contact with a needle member can be reduced in a simplified manner.SOLUTION: A sensor manufacturing method according to the present invention includes: an insertion step of inserting a linear elongate member into a hollow portion defined within a tubular needle member from a proximal end side of the needle member； a protruding step of protruding the elongate member from the distal end of the needle member； a coating step of forming a coating layer on a surface of the protruded portion of the elongate member to process the elongate member into a linear sensor electrode； and an accommodating step of moving the sensor electrode to the proximal end side of the needle member to accommodate the distal end of the sensor electrode into the hollow portion.SELECTED DRAWING: Figure 4【課題】簡易な手法で、センサ電極が針部材に接触するリスクを低減することができるセンサの製造方法を提供する。【解決手段】本発明のセンサの製造方法は、線状の長尺部材を、中空部を区画する管状の針部材の基端側から前記中空部に挿入する挿入工程と、前記長尺部材を、前記針部材の先端から突出させる突出工程と、前記長尺部材の突出した突出部の表面に被覆層を形成して、前記長尺部材を線状のセンサ電極に加工する被覆工程と、前記センサ電極を前記針部材の基端側に移動させて、前記センサ電極の先端を前記中空部に収容する収容工程と、を含む。【選択図】図４
