Abstract: A floor mat laid on a floor surface, constructed from a sheet-like or plate-like member with a predetermined thickness. The mat has relatively hard edge portions (4) at both ends in its width direction, and the edge portions (4) are formed as inclined surfaces gradually descending in a predetermined width to the outer edges of the mat. A belt-like central portion with a predetermined width is provided inside the edge portions (4), and the central portion is formed as an elastic portion that has a uniform thickness or height corresponding to the thickness of inner ends of the edge portions (4) and is softer in elasticity than the edge portions (4). In another example, the mat has a support mat (1) and a belt-like elastic mat (2). A receiving portion (3) is formed between the edge portions (4) of the support mat (1), in the front face side or back face side of the support mat. The elastic mat (2) is received in the receiving portion (3), serving as an elastic portion.