Provided is a nonwoven fabric, comprising a first projecting portion projecting on a first surface side in a planar view of the nonwoven fabric in the form of a sheet and having an internal space, and a second projecting portion projecting on a second surface side on the side opposite to the first surface side and having an internal space, the first projecting portion and the second projecting portion being alternately and continuously arranged in each of different intersecting directions in the planar view of the nonwoven fabric, wherein a top portion of the first projecting portion comprises a small projecting portion having an outside diameter smaller than an outside diameter of the first projecting portion on the first surface side, and the internal space present inside the first projecting portion and an internal space present inside the small projecting portion are communicated to form a continuous internal space.
