By　using　nonequilibrium　molecular　dynamics　(NEMD)　simulations,　we　examine　the　thermal　rectification　in　nanoscale　confined　fluids　with　nanopatterned　surface.　Effects　of　the　temperature　and　fluid　density　on　the　thermal　rectification　are　discussed　respectively.　It　is　shown　that　the　rectification　factor　assumes　a　maximum　value　as　the　high　temperature　is　varied　for　a　fixed　low　temperature.　Lower　number　density　can　improve　the　rectification　factor　but　suppresses　the　heat　transport.　©　2018　International　Heat　Transfer　Conference.　All　rights　reserved.