Application of RFID technology to library in colleges and universities is the developmental tendency in the coming modernatized library.This paper first introduces RFID technology in library and then points out its advantages and the current problems.Through comparing the automatic and manual circulation modes after RFID technology is applied to the library,this paper puts forward that automatic circulation mode should be combined with the manual circulation mode in library of colleges and universities and the automatic circulation apparatus is gradually used till full-automatic book circulation mode will be ultimately fulfilled.