Abstract: Because of the increase in terrorist operations in recent times and because of the large numbers of students and auditors in the universities. It is a major goal for terrorists, so, this study propose a system to control the doors of the university and allow only authorized people to enter and save the information of these people and their date of entrance in system database. This system also provides automatic registration of students attendance to avoid errors in the traditional system and to avoid wasting time and easy to calculate the attendance rate of any student with the possibility of sending a warning message to the student’s parents when the absence exceeds the legal limit. This system based on Radio-Frequency Identification (RFID), Wireless Sensor Network (WSN), Global System Mobile (GSM) and microcontroller.