In　this　paper,　an　SI　epidemic　model　with　feedback　controls　is　first　proposed.　By　constructing　a　suitable　Lyapunov　function,　global　stability　of　the　disease-free　equilibrium　and　the　endemic　equilibrium　of　the　model　is　investigated.　The　results　we　obtained　show　that　by　choosing　suitable　values　of　feedback　control　variables,　we　can　make　the　disease　endemic　or　extinct.　In　other　words,　feedback　control　variables　play　an　important　role　in　dealing　with　the　disease.　An　example　is　presented　to　verify　our　main　results.　©　2013　Elsevier　Ltd.　All　rights　reserved.