  We continue to study the holographic QCD (hQCD) model, proposed in a previous
paper, in an Einstein-Maxwell-Dilaton (EMD) system. In this paper we discuss
some aspects of quark gluon plasma (QGP) in the hQCD model, such as drag force,
jet quenching parameter and screening length. The results turn out to be
consistent with those as expected in QCD qualitatively. By calculating free
energy of the background black hole solution, we find that there exists a
Hawking-Page phase transition between small black hole and big black hole when
chemical potential $\mu $ is less than a critical one $ \mu_c$, and the phase
transition is absent when chemical potential is beyond the critical one.
