An attachment member (1) according to an embodiment of the present invention includes: a base (4) composed of a ceramic sintered body, which has an annular part (6) corresponding to a shape of an object (2), a bottom surface (7) located inside the annular part (6), and a plurality of column shaped protruding parts (8) protruding from the bottom surface (7), and is provided with an attachment surface (3) supporting and attaching the object (2) inside the annular part (6) by a plurality of the protruding parts (8); and a film (5) that covers at least a part of the bottom surface (7), exposes top surfaces (11) of the protruding parts (8), and has higher hydrophilicity than the base (4). Accordingly, it is possible to provide the attachment member (1) that is excellent in attachment force for the object (2), and suppresses contamination of the object (2).