Disclosed is a nonwoven fabric which comprises heat-fusible composite fibers consisting of a first resin component and a second resin component that has a higher melting point than the first resin component, wherein a contact site of the heat-fusible composite fibers is fused to form a fiber-fusion site. The aforesaid nonwoven fabric has a first surface, wherein said heat-fusible composite fibers are fixed in parallel, and a second surface and, in the first surface, the percentage of the number of sites at which fibers are fixed in parallel to the total number of the aforesaid fiber-fusion sites is 5-30%. It is preferred that said percentage in the first surface exceeds the percentage in the second surface.