(I) below or less 98% by weight exceeding 60% by weight, and the following (II) and (III) is a surface layer of less than 40 mass% or more 2 wt% (A1) and (A2), the following (II ) and (total content values surface layer of III) (A1) and (A2) is larger than the intermediate layer (B), are laminated, the total basis weight 45g / m2 or less, the thermal bonding rate 3-30% of the nonwoven fabric laminate. (I) meet the random copolymer (III) following i~vi consisting - olefin and only a melting point of 140 or more of propylene homopolymer (II) propylene and 2 to 20 carbon atoms (excluding 3 carbon atoms) melting point 120 less than propylene homopolymer (i) [mmmm] = 20~60 mole% (ii) [rrrr] / (1- [mmmm]) 0.1 (iii) [rmrm]> 2.5 mole % (iv) [mm] [rr] / [mr] 2 2.0 (v) Mw = 10,000~200,000 (vi) Mw / Mn <4下記(I)が60質量%を超え98質量%以下、下記(II)及び(III)が2質量%以上40質量%未満の表面層(A1)及び(A2)と、下記(II)及び(III)の総含有率の値が表面層(A1)及び(A2)より大きい中間層(B)と、が積層され、総目付45g/m2以下、熱圧着率3~30%の不織布積層体。(I)融点140℃以上のプロピレン単独重合体(II)プロピレンと炭素数2~20(炭素数3を除く)のα-オレフィンとのみからなるランダム共重合体(III)下記i~viを満たす融点120℃未満のプロピレン単独重合体(i)[mmmm]=20~60モル%(ii)[rrrr]/(1-[mmmm])≦0.1(iii)[rmrm]>2.5モル%(iv)[mm]×[rr]/[mr]2≦2.0(v)Mw=10,000~200,000(vi)Mw/Mn<4
