In the fingerprint image processing, various methods have been suggested as using band pass filter, Fouries transform filter and Fuzzy systems. In this paper, we present a useful and an applicable fingerprint security system for student's examination using image processing on such away and a wellorganized algorithm is applied. As a university team work, we have recently tested this security procedure for different samples of students in our institution. The experimental results show a high level of accuracy is obtained. Due to the need to connect and manage the connection, we use the Ethernet card and the Arduino Uno card which they are combined together in such a way to do so. Moreover, the administrator runs a special website in the PC to assign ID to the scanned fingerprint. The calculation of the proposed system is carried out by uploading a suitable Adafruit fingerprint library to the used Audruino Uno card. Finally, the most important security point is that the PC has been used not only to send the developing software into the Uno card but also to disconnect the process electronically while the code is running.