In this paper we investigate the description of the complex Leibniz superalgebras with nilindex n + m, where n and m (m = 0) are dimensions of even and odd parts, respectively. In fact, such superalgebras with characteristic sequence equal to (n 1 , . . . ,n k | m 1 , . . . ,m s ) (where n 1 + · · · + n k = n, m 1 + · · · + m s = m) for n 1 n − 1 and (n 1 , . . . ,n k | m) were classified in works by Ayupov et al. (2009) [3], Camacho et al. (2010) [4], Camacho et al. (in press) [5], Camacho et al. (in press) [6]. Here we prove that in the case of (n 1 , . . . ,n k | m 1 , . . . ,m s ), where n 1 n − 2 and m 1 m − 1 the Leibniz superalgebras have nilindex less than n + m. Thus, we complete the classification of Leibniz superalgebras with nilindex n + m.