In this paper, we study certain multilinear operators of fractional integral type defined by I ⃗ A α ⃗ f (x) = ∫ (R n) m f1(y1) • • • fm(ym) |(x − y1, • • • , x − ym)| mn−α+ m ∑ i=1 (N i −1) m ∏ i=1 RN i (Ai; x, yi)d⃗ y, where 0 < α < mn and RN i (Ai; x, yi) = Ai(x) − ∑ |γ|