In　the　research　and　development　of　the　precise　closed-loop　control　system　in　large　hydraulic　press,　the　touch　screen　and　PLC　are　frequently　applied　to　design,　debug　and　test　for　the　system.　Though　a　better　closed-loop　control　characteristic　can　be　acquired　after　repeated　testing　by　this　way,　the　comprehensive　state　data　of　hydraulic　press　are　unable　to　get,　which　leads　to　a　long　research　cycle　and　also　restricts　the　maintenance　and　upgrade　with　the　equipment　in　the　later　period.　In　order　to　obtain　the　whole　state　information　of　hydraulic　press　easily　and　effectively,　a　monitor　system　of　precise　closed-loop　control　in　large　hydraulic　press　is　designed.　Based　on　reasonable　cooperation　of　sensors　and　high-speed　data-acquisition　card,　high-speed　and　precise　signal　acquisition　is　realized.　In　addition,　data-acquisition　software　program　is　designed　base　on　LabVIEW,　it　can　achieve　the　functions　of　collecting,　storing,　displaying　and　analyzing　data.　Through　the　real　measuring　and　analyzing　on　a　certain　large　ceramic　hydraulic　press,　the　status　of　key　parameters　can　be　acquired　effectively　during　the　whole　pressing　process.　So　the　monitoring　system　supplies　the　significant　data　basis　to　the　precise　closed-loop　control,　accelerates　the　design　and　development　of　high　characteristic　precise　closed-loop　control　and　also　strongly　supports　to　the　maintenance　and　upgrade　with　the　equipments　in　the　later　period.　©　(2014)　Trans　Tech　Publications,　Switzerland.