In　order　to　solve　the　low　efficiency　and　poor　precision　problems　of　traditional　ink　control　methods　on　domestic　offset　printers,　developing　modern　ink　automatic　control　system　has　become　more　and　more　urgent.　As　an　important　subsystem,　the　human　computer　interface　(HCI)　is　a　key　function　for　the　wholly　automatic　control.　Once　this　goal　is　obtained,　all　the　printing　procedures　especially　the　automatic　control　of　ink　volume　should　be　finished　with　human　computer　interface　in　different　areas.　Considering　the　HCI　design　theory　and　structure　characteristics　of　domestic　printers　comprehensively,　the　HCI　prototype　for　automatic　ink　control　system　has　been　developed　based　on　Visual　Basic　platform.　As　the　individual　ink　key　is　instead　of　the　integrated　key,　the　division　result　of　ink　fountain　can　be　displayed　on　the　interface.　Through　the　interface,　the　dynamic　adjusting　functions　such　as　modifying　ink　volume,　locking　or　unlocking　each　ink　key　and　real-time　displaying　the　adjusting　results　etc.　can　be　completed.　The　simulation　test　has　shown　that　the　opening　and　practical　feature　of　the　prototype　is　satisfactory.