Doubly-fed　induction　generator　(DFIG)-based　wind　farm　has　the　characteristic　of　transient　fault　with　low　voltage　ride　through　(LVRT)　capability.　A　new　three-phase　fault　direction　identification　method　for　the　outgoing　transmission　line　of　the　wind　farm　is　presented.　The　ability　of　the　new　directional　relay　to　differentiate　between　a　three-phase　fault　in　one　direction　or　the　other　is　obtained　by　using　the　increment　of　phase　angle　difference　between　the　memory　voltage　signal　and　the　fault　current　signal　within　a　certain　time,　and　using　the　amplitude　variation　of　the　fault　current.　It　can　be　inferred　that　the　fault　current　is　supplied　by　the　wind　farm　whether　the　phase　angle　differs　or　the　current　amplitude　varies　considerably.　Different　fault　locations　at　the　outgoing　transmission　line　have　been　simulated　by　PSCAD/EMTDC　to　evaluate　the　reliability　and　sensitivity　of　the　proposed　technique.　Results　show　that　the　new　directional　relay　is　of　faster　response　when　a　three-phase　fault　occurs　at　the　outgoing　transmission　line　of　a　DFIG-based　wind　farm.