User authentication is a fundamental component in most computer security contexts. It provides the basis for access control and user accountability. While there are various types of user authentication systems, alphanumerical passwords are most widely used user authentication. Users are known to choose easily guessable and short text passwords, which are easy targets of dictionary and brute-forced attacks. Enforcing a strong password policy sometimes leads to an opposite effect, as a user may resort to writing his or her difficult-to-remember passwords on sticky notes or back of the debit card exposing them to direct theft.The graphical passwords are preferable authentication systems where users click on images to authenticate themselves. Graphical password schemes have been proposed as possible alternatives to textbased schemes, motivated partially by the fact that humans can remember pictures better than text .This paper aims at implementing the simple Graphical Password Authentication System using fusion algorithm. The proposed work includes three phases- Registration, Training and Authentication.