The　flow　characteristics　of　the　ink　on　the　ink　fountain　roller　of　offset　printing　machine　is　very　important　for　the　ink　amount　control　and　the　ink　amount　control　can　determine　the　color　quality　of　printing　products.　This　study　simulates　first　the　ink　flow　of　only　one　ink　area　using　CFX　fluid　simulation　software,　then　two　situations　are　simulated　to　analyze　how　the　ink　area　is　affected　by　its　adjacent　ink　areas　on　each　side.　In　the　first　situation,　the　adjacent　sides　of　the　middle　ink　area　have　the　same　ink　key　opening　size　that　is　larger　than　that　of　the　middle　area.　In　the　second　situation,　the　adjacent　sides　of　the　middle　ink　area　have　different　ink　key　opening　size　and　each　is　smaller　than　that　of　the　middle　area.　From　the　analysis　it　can　be　seen　that,　in　the　printing　process,　the　pressure　and　speed　and　ink　layer　thickness　of　ink　on　the　ink　fountain　roller　are　affected　by　the　interaction　between　adjacent　ink　areas.　Compared　with　previous　work　that　is　limited　to　analyze　the　ink　flow　characteristics　of　only　one　ink　area,　the　study　aims　to　analyze　the　ink　flow　characteristics　under　the　interactional　effect　of　adjacent　ink　areas.　The　research　provides　a　reference　to　the　mutual　influence　between　ink　areas　in　the　actual　printing　process　and　it＇s　important　for　the　printing　color　quality　control　and　has　a　better　application　prospect.　©　2013　Asian　Network　for　Scientific　Information.