Lignite　has　been　extensively　used　for　electricity　generation　in　many　regions　worldwide.　However,　its　high　water　content　has　obviously　negative　effect　on　plant　thermal　efficiency.　Performance　of　lignite-fired　power　plant　can　be　improved　by　predrying　the　lignite　before　combustion.　In　addition,　recovery　of　waste　heat　from　the　dryer　and　the　power　generation　system　will　enhance　the　plant　thermal　efficiency　further.　In　the　present　study,　a　new　lignite　predrying　power　generation　system　integrated　with　an　efficient　waste　heat　recovery　system　was　proposed.　Both　dryer　exhaust　waste　heat　and　steam　turbine　exhaust　latent　heat　were　recovered　to　heat　boiler　feed　water.　Energy　analysis　indicates　that　system　performance　is　improved　significantly.　The　plant　thermal　efficiency　increases　linearly　with　drying　degree　and　then　increases　at　a　lower　rate.　The　generation　of　unused　dryer　exhaust　changes　the　variation　tendency　of　system　performance　with　drying　degree.