Öz 1. Introduction. In [1], the author has introduced the idea of strong functional Nörlund sum m ability [N, p]x and has inves- tigated some of its properties. In the present paper, wc establish some theorems concerning strong functional Nörlund sum m ability of the Cauchy product of two integrals. The analogue of our Theorem 3 for functional Nörlund sum m ability (N, p) is [3, Theorem 6],