Social　network　analysis　comprises　a　set　of　research　methods　that　can　be　used　to　analyze　the　relationships　between　entities　such　as　people,　departments,　and　organizations.　The　purpose　of　the　analysis　is　to　discover　patterns　of　relationships　of　the　people　working　in　a　team,　so　we　can　take　some　measures　in　order　to　achieve　the　whole　hog　transfer　of　knowledge.　This　paper　presents　an　introduction　to　the　application　of　social　network　in　knowledge　transfer.