Abstract. The main purpose of this paper is to study the growth of solutions of the linear differential-difference equationwhere Aij(z) (i = 0, · · · , n; j = 0, · · · , m) are entire or meromorphic functions of finite logarithmic order and ci (0, · · · , n) are distinct complex numbers. We extend some precedent results due to Wu and Zheng and others.1. Introduction and main results. Throughout this paper, we assume that readers are familiar with the standard notations and the fundamental results of the Nevanlinna value distribution theory of meromorphic functions ([12, 19]). Let f be a meromorphic function; we define m(r, f ) = 1 2πand T (r, f ) = m(r, f ) + N (r, f ) (r > 0)2010 Mathematics Subject Classification. 30D35, 34K06, 34K12.