To provide an optical element holding tool and a working method using the same, capable of improving the quality in the shape of an optical element to improve the productivity without affected by the deformation of the optical element produced in a former process by improving the shape of an optical element receiving face of the optical element holding tool used in grinding/polishing.

In this optical element holding tool 1 used in grinding/polishing an optical element by the rotation of the tool and the relative motion of the optical element rotated by the rotation of the tool in a state of pressing the optical element to the tool for grinding/polishing work, a dimension of a sheet material 3 adhered to a receiving face 2a of a holding tool body 2 to be used as a face abutted on a rear face of the optical element is 90-50% by a radial ratio of the optical element, and the generation of the astigmatism of the optical element in the present process caused by the deformation of the optical element produced in the former process can be prevented by grinding or polishing the optical element while holding the optical element by the optical element holding tool 1.