In this paper, a class of more general delayed viral infection model with lytic immune response is proposed by Song et al.[1] ([Journal of Mathematical Analysis Application 373 (2011), 345-355). We derive the basic reproduction numbers

and

0 for the viral infection, and establish that the global dynamics are completely determined by the values of

and

. If

, the viral-free equilibrium

is globally asymptotically stable; if

<

, the immune-free equilibrium

is globally asymptotically stable; if

> 1, the chronic-infection equilibrium

is globally asymptotically stable by using the method of Lyapunov function.