We say that an isometric immersion hypersurface x: Mn! En+1 is of null Lk-2-type if x = x1+x2, x1,x2: Mn! En+1 are smooth maps and Lkx1 = 0,Lkx2 = , x2, ,is non-zero real number, Lk is the linearized operator of the (k+1)th mean curvature of the hypersurface, i. e., Lk(f) = tr(Pk, Hessianf) for f 2 C 1 (M), where Pk is the kth New-ton transformation, Lkx = (Lkx1, : : :,Lkxn+1),x = (x1, : : :, xn+1). In this article, we classify , (2)-ideal Euclidean hypersurfaces of null L1-2-type.