Radio frequency identification rfid based attendance management system is suitable intended for implementation in any college or university or company. Main objective of rfid based attendance system project is to take the attendance of students or employees. Microcontroller does the task of storing the attendance of the respective person in the microcontroller memory. Commonly used rfid cards are of the dimensions of credit card and are white these are, In color utilized for many rfid projects. However now days rfid cards are offered alongside small or rfid key tags are available. These key tags can be linked together with the key, Chain. And normal rfid card can be stick together with the id, Card of employees or students. Or we can even print the id, Card information on the rfid card itself. This means that there are no extra efforts required or no extra trouble is caused for carrying this card since students and employees always carry their i, Cards in college and industries respectively.