A　two-patch　model　with　additive　Allee　effect　is　proposed　and　studied　in　this　paper.　Our　objective　is　to　investigate　how　dispersal　and　additive　Allee　effect　have　an　impact　on　the　above　model＇s　dynamical　behaviours.　We　discuss　the　local　and　global　asymptotic　stability　of　equilibria　and　the　existence　of　the　saddle-node　bifurcation.　Complete　qualitative　analysis　on　the　model　demonstrates　that　dispersal　and　Allee　effect　may　lead　to　persistence　or　extinction　in　both　patches.　Also,　combining　mathematical　analysis　with　numerical　simulation,　we　verify　that　the　total　population　abundance　will　increase　when　the　Allee　effect　constant　a　increases　or　m　decreases.　And　the　total　population　density　increases　when　the　dispersal　rate　D-1　increases　or　the　dispersal　rate　D-2　decreases.