The libraries meet the needs of the multilingual information processing for library.In this paper,after analysing the necessary that processing the computer-based catalog in uigur is important analysing GB and ISO/IEX standad system about,Chinese Character set and uigur character set, analysing the in-development uigur-operation system and characterizes of the uigur-MARC s structure.The article introduces the experiences of self-building uigur-MARC in ILAS5.0 catalog sub- system at the same time some suggesions are addressed concerning the library building up database in uigur.