  Using gauge theory/string duality, we calculated the jet quenching parameter
$\hat{q}$ of the Sakai-Sugimoto model in various phases. Being different from
the $\mathcal{N}=4$ SYM theory where $\hat{q}\propto T^3$, we find that
$\hat{q}\propto T^4/T_d$, where $T_d$ is the critical temperature of the
confined/deconfined phase transition. By analyzing the $\hat{q}$ in different
phases of this theory, we get better understanding about some statements in
previous works, such as the non-universality and the explanation of
discrepancies between the theory predictions and experiments.
