An object of the present invention is to provide a probe holder for light biometric that prevent problems caused by due to the loosening of the fastening parts crumble the shape of the probe holder. a plurality of sockets 2 for holding by inserting the transmitting and receiving optical probe 6 and 7 the cylindrical bore of the cylindrical body 22 having a flange portion 21 A at one end, connecting holes 14 are at least two forming , flexibility and a plurality of holder parts 11 having, and a fastening part 4 for clamping the holder part 11 in cooperation with the flange portion 21 of the socket 2, and fitted into the socket 2 to the connection hole 14 of the holder part 11 with linking the holder parts 11 to each other on, the socket 2 is supported at regular intervals, as well as configure the pivotally coupled with mesh-like body in the tangent plane of the object to be measured surface, the cylinder is in the socket 2 bamboo shoot-like uneven surface 23 is formed on the outer periphery of the body 22, the fastening component 4 to be formed by the annular component of the closely fitted possible inner diameter bamboo shoot-like uneven surface 23.FIELD 5【課題】締結部品の緩みに起因してプローブホルダの形状が崩れることにより生じる不具合を防止した光生体測定用のプローブホルダを提供する。【解決手段】一端側に鍔部21を有する筒体22の筒孔に送受光プローブ6、7を挿入して保持する複数のソケット2と、連結孔14が少なくとも2つ形成され、可撓性を有する複数のホルダ部品11と、ホルダ部品11をソケット2の鍔部21と協働して挟持する締結部品4とを備え、ホルダ部品11の連結孔14にソケット2を嵌入してホルダ部品11を相互に連結するとともに、ソケット2を一定間隔を隔てて支持し、測定対象物表面の接平面内で回動可能に連結されて網状体を構成するとともに、ソケット2には筒体22の外周にタケノコ状の凹凸面23が形成され、締結部品4がタケノコ状の凹凸面23に密嵌可能な内径の環状部品で形成されるようにする。【選択図】図5