Lignite　is　abundant　and　cost-effective　fossil　fuel　for　power　plants.　However,　power　plants　firing　lignite　directly　have　low　efficiency,　which　can　be　improved　by　pre-drying　lignite.　Various　dryers　have　been　developed　to　dry　lignite,　and　evaporative　drying　technologies　are　commonly　applied.　Nevertheless,　the　evaporative　drying　is　an　energy　intensive　process.　When　evaporative　dryers　are　integrated　within　power　plants,　the　waste　heat　of　power　plants　can　be　used　to　dry　lignite,　thereby　increasing　the　efficiency　of　power　plants.　Many　studies　on　the　design　and　optimization　of　lignite-fired　power　plants　integrated　with　evaporative　dryers　have　been　carried　out.　However,　a　review　paper　on　this　topic　is　unavailable.　Therefore,　this　paper　presents　a　literature　review　on　the　integration　of　evaporative　dryers　into　lignite-fired　power　plants.　System　configurations　of　pre-dried　lignite-fired　power　plants　are　reviewed　and　compared,　and　future　research　directions　are　proposed.