The stability of the SIR epidemic model with information variable,saturated incidence rate and graded cure rate was studied. We obtain the basic reproduction number R0,The local asymptotical stability of equilibria is verified by analyzing the eigenvalues and using the Routh-Hurwitz criterion,this model exhibits two bifurcations,one is transcritical bifurcation and the other is Hopf bifurcation. We also discuss the global asymptotical stability of the disease free equilibrium by constructing a Lyapunov func...