  In this paper, we study the Li-Yorke chaotic composition operators on
Orlicz-Lorentz space. In fact, necessary and sufficient conditions are given
for Li-Yorke chaotic composition operator $C_{\tau}$ on
$\mathbb{L}^{\varphi,h}(\mu)$. Further, we present the equivalent conditions
for $C_{\tau}$ to be Li-Yorke chaotic. This paper's results are the
generalization of results of [15] into Orlicz-Lorentz spaces.
