Library materials (Library), which attracted many visitors seeking information library, the library collection according to its nature there are borrowed to take home and there was borrowed to be read in place, visitors to the library often has limited time to read diperpustakaan, so that not a few collections that often missing. In this research, library materials security system is required to use RFID (Radio Frequency Identification). Which can mengidentifikasii affordable collection through frequency by putting RFID tags on the collection and RFID in the strategic area or the exit from the room so that the collection is out of the room will always be identified or read by the tool. These systems provide data reports and books identified alarm sound from the instrument, if the collection is not allowed.