Radio frequency identification (RFID) is one of the most promising new technologies belonging to the systems of data acquisition and automatic identification (AIDC). It consists of three basic elements: an electronic tag, a tag reader and a database. Which makes it a versatile system with multiple applications for the industry, home and building automation. This document presents the implementation of an identification and security system for students through RFID. The system uses passive tags, an RFID reader with Arduino card and has connectivity to a database created in MySQL with C ++ visual programming. The main objective is to store student access and location data, this way you can make reports of class attendance, use and / or access to laboratories in addition to having real time monitoring of the students' location. Compared to some other similar technologies, RFID does not require visual contact with the reader, is affordable and easy to implement.